JCB 427, 437 and 457 Wheeled Loading Shovel Service Repair Manual Instant Download

1
Service Manual
Wheeled Loading Shovel - 427, 437 and
457
Section 1 - General Information
Section 2 - Care and Safety
Section 3A - Routine Maintenance
Section 3B - Routine Maintenance
Section A - Attachments
Section B - Body and Framework
Section C - Electrics
Section E - Hydraulics
Section F - Transmission
Section G - Brakes
Section H - Steering
Section K - Engine

Publication No. 9813-1600-4
World Class Customer Support
Copyright 2004 JCB SERVICE. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any other means, electronic, mechanical, photocopying or otherwise, without prior permission from JCB SERVICE.
Issued by JCB Technical Publications, JCB
Service, World Parts Centre, Beamhurst,
Uttoxeter, Staffordshire, ST14 5PA, England. Tel
44 1889 590312 Fax [phone]
2
Section 1
General Information Section 1 - General Information Section 2 - Care and Safety Section 3A - Routine Maintenance Section 3B - Routine Maintenance Section A - Attachments Section B - Body and Framework Section C - Electrics Section E - Hydraulics Section F - Transmission Section G - Brakes Section H - Steering Section K - Engine Publication No. 9813-1600-3 World Class Customer Support
Copyright 2004 JCB SERVICE. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any other means, electronic, mechanical, photocopying or otherwise, without prior permission from JCB SERVICE. World Class Customer Support
Issued by JCB Technical Publications, JCB
Service, World Parts Centre, Beamhurst,
Uttoxeter, Staffordshire, ST14 5PA, England. Tel
44 1889 590312 Fax [phone]
3
Section 1 - General Information
Contents Page No. Introduction About this Manual
..................................................
.................................. 1 -
1 Identifying Your Machine .......................
..................................................
1 - 3 Standard Torque Settings Zinc Plated
Fasteners and Dacromet Fasteners
..................................... 1 - 5
Hydraulic Connections ............................
.................................................
1 - 9 Service Tools Numerical List
..................................................
...................................... 1 -
13 Tool Detail Reference Section
..................................................
............. 1 - 14 Service Aids Sealing and
Retaining Compounds ..............................
......................... 1 - 27 Terms and
Definitions Colour Coding ........................
..................................................
.............. 1 - 29 Basic Operation Transportin
g the Machine ....................................
.................................. 1 - 31 Moving
a Disabled Machine ...............................
................................... 1 -
34 Lifting the Machine ...........................
..................................................
... 1 - 36 Storage of the Machine
..................................................
....................... 1 - 37
1 - i
1 - i
4
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Section 1 - General Information Introduction Abo
ut this Manual
Machine Model and Serial Number This manual
provides information for the following model(s)
in the JCB machine range
Finally, please remember above all else safety
must come first!
Section Numbering
T11-005 The manual is compiled in sections, the
first three are numbered and contain information
as follows
427 T4i from 2063050 437 T4i from 2063202
457 T4i from 1907000.

1. General Information - includes torque settings
   and service tools.
2. Care and Safety - includes warnings and cautions
   pertinent to aspects of workshop procedures etc.
3. Maintenance - includes service schedules and
   recommended lubricants for all the machine.

Using the Service Manual
T11-004 This publication is designed for the
benefit of JCB Distributor Service Engineers who
are receiving, or have received, training by JCB
Technical Training Department.
These personnel should have a sound knowledge of
workshop practice, safety procedures, and general
techniques associated with the maintenance and
repair of hydraulic earthmoving equipment.
The remaining sections are alphabetically coded
and deal with Dismantling, Overhaul etc. of
specific components, for example

1. Attachments
2. Body and Framework, etc.

The illustrations in this publication are for
guidance only. Where the machines differ, the
text and/or the illustration will specify.
Section contents, technical data, circuit
descriptions, operation descriptions etc. are
inserted at the beginning of each alphabetically
coded section.
General warnings in Section 2 are repeated
throughout the manual, as well as specific
warnings. Read all safety statements regularly,
so you do not forget them.
Renewal of oil seals, gaskets, etc., and any
component showing obvious signs of wear or
damage is expected as a matter of course. It is
expected that components will be cleaned and
lubricated where appropriate, and that any
opened hose or pipe connections will be blanked
to prevent excessive loss of hydraulic fluid and
ingress of dirt. Where a torque setting is given
as a single figure it may be varied by plus or
minus 3. Torque figures indicated are for dry
threads, hence for lubricated threads may be
reduced by one third. The manufacturer's policy
is one of continuous improvement. The right to
change the specification of the machine without
notice is reserved. No responsibility will be
accepted for discrepancies which may occur
between specifications of the machine and the
descriptions contained in this publication.
1 - 10
6
Section 1 - General Information Introduction About
this Manual
Left Side, Right Side In this manual, 'left' A
and 'right' B mean your left and right when you
are seated correctly in the machine.
T033800-1
Fig 1. Cross References T1-004_2 In this
publication, page cross references are made by
presenting the subject title printed in bold,
italic and underlined. It is preceeded by the
'go to' symbol. The number of the page upon
which the subject begins, is indicated within
the brackets. For example K Cross References (
1-2).
1 - 10
7
Section 1 - General Information Introduction Ident
ifying Your Machine Identifying Your Machine
Machine Identification Plate
Typical Product Identification Number
Your machine has an identification plate mounted
as shown. The serial numbers of the machine and
its major units are stamped on the plate.
0
8
B
4
6
3
8
6
0
2
5
7
Z
S
D
C
J
Note The machine model and build specification
is indicated by the PIN. Refer to Typical
Product Identification Number (PIN).
T033160-9
Fig 3.
1 World Manufacturer Identification (3 Digits)
The serial number of each major unit is also
stamped on the unit itself. If a major unit is
replaced by a new one, the serial number on the
identification plate will be wrong. Either stamp
the new number of the unit on the identification
plate, or simply stamp out the old number. This
will prevent the wrong unit number being quoted
when replacement parts are ordered.
2 Model Number (3 Digits)
3 Loader End Type (1 Digit)
O HT Loader End Z ZX Loader End
The machine and engine serial numbers can help
identify exactly the type of equipment you have.
4 Designation (1 Digit)
S Farmmaster O Non Farmmaster I
India 5 Year of Manufacture (1 Digit)
7 2007 8 2008 9 2009
A 2010 B 2011 C 2012
6 Machine Serial Number (8 Digits) Each machine
has a unique serial number.
T033550-2
Fig 2.
1 - 10
8
Section 1 - General Information Introduction Ident
ifying Your Machine
Component Identification Plates
FOPS Data Plate
! WARNING
Engine
Do not use the machine if the falling objects
protection level provided by the structure is
not sufficient for the application. Falling
objects can cause serious injury.
The engine data plate A is on top of the
crankcase.
8-2-8-17 If the machine is used in any
application where there is a risk of falling
objects then a falling-objects protective
structure (FOPS) must be installed. For further
information contact your JCB Dealer The falling
objects protection structure (FOPS) is fitted
with a dataplate. The dataplate indicates what
level protection the structure provides.
A
There are two levels of FOPS
Level I Impact Protection - impact strength for
protection from small falling objects (e.g.
bricks, small concrete blocks, hand tools)
encountered in operations such as highway
maintenance, landscaping and other construction
site services.
333-R1376-3
Fig 4.
Transmission
The transmission data plate A is on the front
face.
Level II Impact Protection - impact strength
for protection from heavy falling objects (e.g.
trees, rocks) for machines involved in site
clearing, overhead demolition or forestry. ROPS
Data Plate ! WARNING Seat Belts The ROPS/FOPS is
designed to give you protection in an accident.
If you do not wear your seat belt, you could be
thrown out of the machine and crushed. You must
wear a seat belt when using the machine. Fasten
the seat belt before starting the
engine. 0153 Machines built to the ROPS/FOPS
standard have a data plate attached to the
inside of the cab.
A
427 437 457
FOPS COMPLIES TO EN 136272000 LEVEL2
J.C.B.CAB SYSTEMS LAKESIDE WORKS ROCESTER UTTOXETER,STAFFS ST14 5JP ENGLAND J.C.B.CAB SYSTEMS LAKESIDE WORKS ROCESTER UTTOXETER,STAFFS ST14 5JP ENGLAND JCB WHEELED LOADER MAXIMUM UNLADEN MASS 26000Kg YEAR
332/A5586 SERIAL No
ROPS COMPLIES TO EN 135102000 ISO 34711994
795550-2
Fig 5.
CAB PART No 335/06840,335/09298
332-A5586
Fig 6.
1 - 10
9
Section 1 - General Information Standard Torque
Settings Zinc Plated Fasteners and Dacromet
Fasteners Standard Torque Settings Zinc Plated
Fasteners and Dacromet Fasteners T11-002
Introduction
Bolts and Screws
Some external fasteners on JCB machines are
manufactured using an improved type of corrosion
resistant finish. This type of finish is called
Dacromet and replaces the original Zinc and
Yellow Plating used on earlier machines.
Use the following torque setting tables only
where no torque setting is specified in the text.
Note Dacromet fasteners are lubricated as part
of the plating process, do not lubricate.
The two types of fasteners can be readily
identified by colour and part number suffix. K
Table 1. Fastener Types ( 1-5).
Torque settings are given for the following
conditions
Condition 1

• Un-lubricated fasteners
• Zinc fasteners
• Yellow plated fasteners

Table 1. Fastener Types
Fastener Type Colour Part No. Suffix
Zinc and Yellow Golden finish 'Z' (e.g. 1315/3712Z)
Dacromet Mottled silver finish 'D' (e.g. 1315/3712D)
Condition 2

• Zinc flake (Dacromet) fasteners
• Lubricated zinc and yellow plated fasteners
• Where there is a natural lubrication. For
  example, cast iron components

Note As the Dacromet fasteners have a lower
torque setting than the Zinc and Yellow
fasteners, the torque figures used must be
relevant to the type of fastener.
Note A Dacromet bolt should not be used in
conjunction with a Zinc or Yellow plated nut, as
this could change the torque characteristics of
the torque setting further. For the same reason,
a Dacromet nut should not be used with a Zinc or
Yellow plated bolt.
Verbus Ripp Bolts
Note All bolts used on JCB machines are high
tensile and must not be replaced by bolts of a
lesser tensile specification.
Fig 7.
Note Dacromet bolts, due to their high corrosion
resistance are used in areas where rust could
occur. Dacromet bolts are only used for external
applications. They are not used in applications
such as gearbox or engine joint seams or
internal applications.
Torque settings for these bolts are determined by
the application. Refer to the relevant procedure
for the required settings.
1 - 10
10
Section 1 - General Information Standard Torque
Settings Zinc Plated Fasteners and Dacromet
Fasteners Table 2. Torque Settings - UNF Grade
'S' Fasteners
Bolt Size Bolt Size Hexagon (A/F) Condition 1 Condition 1 Condition 1 Condition 2 Condition 2 Condition 2
in. mm in. Nm kgf m lbf ft Nm kgf m lbf ft
1/4 6.3 7/16 11.2 1.1 8.3 10.0 1.0 7.4
5/16 7.9 1/2 22.3 2.3 16.4 20.0 2.0 14.7
3/8 9.5 9/16 40.0 4.1 29.5 36.0 3.7 26.5
7/16 11.1 5/8 64.0 6.5 47.2 57.0 5.8 42.0
1/2 12.7 3/4 98.00 10.0 72.3 88.0 9.0 64.9
9/16 14.3 13/16 140.0 14.3 103.2 126.0 12.8 92.9
5/8 15.9 15/16 196.0 20.0 144.6 177.0 18.0 130.5
3/4 19.0 1 1/8 343.0 35.0 253.0 309.0 31.5 227.9
7/8 22.2 1 15/16 547.0 55.8 403.4 492.0 50.2 362.9
1 25.4 1 1/2 814.0 83.0 600.4 732.0 74.6 539.9
1 1/8 31.7 1 7/8 1181.0 120.4 871.1 1063.0 108.4 784.0
1 1/4 38.1 2 1/4 1646.0 167.8 1214.0 1481.0 151.0 1092.3
Table 3. Torque Settings - Metric Grade 8.8
Fasteners
Bolt Size Bolt Size Hexagon (A/F) Condition 1 Condition 1 Condition 1 Condition 2 Condition 2 Condition 2
ISO Metric Thread mm mm Nm kgf m lbf ft Nm kgf m lbf ft
M5 5 8 5.8 0.6 4.3 5.2 0.5 3.8
M6 6 10 9.9 1.0 7.3 9.0 0.9 6.6
M8 8 13 24.0 2.4 17.7 22.0 2.2 16.2
M10 10 17 47.0 4.8 34.7 43.0 4.4 31.7
M12 12 19 83.0 8.5 61.2 74.0 7.5 54.6
M16 16 24 205.0 20.9 151.2 184.0 18.8 135.7
M20 20 30 400.0 40.8 295.0 360.0 36.7 265.5
M24 24 36 690.0 70.4 508.9 621.0 63.3 458.0
M30 30 46 1372.0 139.9 1011.9 1235.0 125.9 910.9
M36 36 55 2399.0 244.6 1769.4 2159.0 220.0 1592.4
1 - 10
11
Section 1 - General Information Standard Torque
Settings Zinc Plated Fasteners and Dacromet
Fasteners Table 4. Metric Grade 10.9 Fasteners
Bolt Size Bolt Size Hexagon (A/F) Condition 1 Condition 1 Condition 1 Condition 2 Condition 2 Condition 2
ISO Metric Thread mm mm Nm kgf m lbf ft Nm kgf m lbf ft
M5 5 8 8.1 0.8 6.0 7.3 0.7 5.4
M6 6 10 13.9 1.4 10.2 12.5 1.3 9.2
M8 8 13 34.0 3.5 25.0 30.0 3.0 22.1
M10 10 17 67.0 6.8 49.4 60.0 6.1 44.2
M12 12 19 116.0 11.8 85.5 104.0 10.6 76.7
M16 16 24 288.0 29.4 212.4 259.0 26.4 191.0
M20 20 30 562.0 57.3 414.5 506.0 51.6 373.2
M24 24 36 971.0 99.0 716.9 874.0 89.1 644.6
M30 30 46 1930.0 196.8 1423.5 1737.0 177.1 1281.1
M36 36 55 3374.0 344.0 2488.5 3036.0 309.6 2239.2
Table 5. Metric Grade 12.9 Fasteners
Bolt Size Bolt Size Hexagon (A/F) Condition 1 Condition 1 Condition 1 Condition 2 Condition 2 Condition 2
ISO Metric Thread mm mm Nm kgf m lbf ft Nm kgf m lbf ft
M5 5 8 9.8 1.0 7.2 8.8 0.9 6.5
M6 6 10 16.6 1.7 12.2 15.0 1.5 11.1
M8 8 13 40.0 4.1 29.5 36.0 3.7 26.5
M10 10 17 80.0 8.1 59.0 72.0 7.3 53.1
M12 12 19 139.0 14.2 102.5 125.0 12.7 92.2
M16 16 24 345.0 35.2 254.4 311.0 31.7 229.4
M20 20 30 674.0 68.7 497.1 607.0 61.9 447.7
M24 24 36 1165.0 118.8 859.2 1048.0 106.9 773.0
M30 30 46 2316.0 236.2 1708.2 2084.0 212.5 1537.1
M36 36 55 4049.0 412.9 2986.4 3644.0 371.6 2687.7
1 - 10
12
Section 1 - General Information Standard Torque
Settings Zinc Plated Fasteners and Dacromet
Fasteners Table 6. Torque Settings - Rivet Nut
Bolts/Screws
Bolt Size Bolt Size Nm kgf m lbf ft
ISO Metric Thread mm Nm kgf m lbf ft
M3 3 1.2 0.1 0.9
M4 4 3.0 0.3 2.0
M5 5 6.0 0.6 4.5
M6 6 10.0 1.0 7.5
M8 8 24.0 2.5 18.0
M10 10 48.0 4.9 35.5
M12 12 82.0 8.4 60.5
Table 7. Torque Settings - Internal Hexagon
Headed Cap Screws (Zinc)
Bolt Size Nm kgf m lbf ft
ISO Metric Thread Nm kgf m lbf ft
M3 2.0 0.2 1.5
M4 6.0 0.6 4.5
M5 11.0 1.1 8.0
M6 19.0 1.9 14.0
M8 46.0 4.7 34.0
M10 91.0 9.3 67.0
M12 159.0 16.2 117.0
M16 395.0 40.0 292.0
M18 550.0 56.0 406.0
M20 770.0 79.0 568.0
M24 1332.0 136.0 983.0
1 - 10
13
Section 1 - General Information Standard Torque
Settings Hydraulic Connections Hydraulic
Connections T11-003 'O' Ring Face Seal
System Adaptors Screwed into Valve
Blocks Adaptor screwed into valve blocks, seal
onto an 'O' ring which is compressed into a 45
seat machined into the face of the tapped
port. Table 8. Torque Settings - BSP Adaptors
BSP Adaptor Size Hexagon (A/F) Nm kgf m lbf ft
in. mm Nm kgf m lbf ft
1/4 19.0 18.0 1.8 13.0
3/8 22.0 31.0 3.2 23.0
1/2 27.0 49.0 5.0 36.0
5/8 30.0 60.0 6.1 44.0
3/4 32.0 81.0 8.2 60.0
1 38.0 129.0 13.1 95.0
1 1/4 50.0 206.0 21.0 152.0
Table 9. Torque Settings - SAE Connections
SAE Tube Size SAE Port Thread Size Hexagon (A/F) Nm kgf m lbf ft
SAE Tube Size SAE Port Thread Size mm Nm kgf m lbf ft
4 7/16 - 20 15.9 20.0 - 28.0 2.0 - 2.8 16.5 - 18.5
6 9/16 - 18 19.1 46.0 - 54.0 4.7 - 5.5 34.0 - 40.0
8 3/4 - 16 22.2 95.0 - 105.0 9.7 - 10.7 69.0 - 77.0
10 7/8 - 14 27.0 130.0 - 140.0 13.2 - 14.3 96.0 - 104.0
12 1 1/16 - 12 31.8 190.0 - 210.0 19.4 - 21.4 141.0 - 155.0
16 1 5/16 - 12 38.1 290.0 - 310.0 29.6 - 31.6 216.0 - 230.0
20 1 5/8 47.6 280.0 - 380.0 28.5 - 38.7 210.0 - 280.0
1 - 10
14
Section 1 - General Information Standard Torque
Settings Hydraulic Connections
Hoses Screwed into Adaptors
Fig 8.
Hoses 8-B screwed into adaptors 8-A seal onto an
O' ring 8-C which is compressed into a 45 seat
machined into the face of the adaptor port.
Note Dimension 8-D will vary depending upon the
torque applied.
Table 10. BSP Hose - Torque Settings
BSP Hose Size Hexagon (A/F) Nm kgf m lbf ft
in. mm Nm kgf m lbf ft
1/8 14.0 14.0 - 16.00 1.4 - 1.6 10.3 - 11.8
1/4 19.0 24.0 - 27.0 2.4 - 2.7 17.7 - 19.9
3/8 22.0 33.0 - 40.0 3.4 - 4.1 24.3 - 29.5
1/2 27.0 44.0 - 50.0 4.5 - 5.1 32.4 - 36.9
5/8 30.0 58.0 - 65.0 5.9 - 6.6 42.8 - 47.9
3/4 32.0 84.0 - 92.0 8.6 - 9.4 61.9 - 67.8
1 38.0 115.0 - 126.0 11.7 - 12.8 84.8 - 92.9
1 1/4 50.0 189.0 - 200.0 19.3 - 20.4 139.4 - 147.5
1 1/2 55.0 244.0 - 260.0 24.9 - 26.5 180.0 - 191.8
1 - 10
15
Section 1 - General Information Standard Torque
Settings Hydraulic Connections Adaptors into
Component Connections with Bonded Washers Table
11. BSP Adaptors with Bonded Washers - Torque
Settings
BSP Size Nm kgf m lbf ft
in. Nm kgf m lbf ft
1/8 20.0 2.1 15.0
1/4 34.0 3.4 25.0
3/8 75.0 7.6 55.0
1/2 102.0 10.3 75.0
5/8 122.0 12.4 90.0
3/4 183.0 18.7 135.0
1 203.0 20.7 150.0
1 1/4 305.0 31.0 225.0
1 1/2 305.0 31.0 225.0
1 - 10
16
Section 1 - General Information Standard Torque
Settings Hydraulic Connections
'Torque Stop' Hose System
Fig 9.
Torque Stop' Hoses 9-B screwed into adaptors 9-A
seal onto an 'O' ring 9-C which is compressed
into a 45 seat machined in the face of the
adaptor port. To prevent the 'O' ring being
damages as a result of over tightening, 'Torque
Stop' Hoses have an additional shoulder 9-D,
which acts as a physical stop.
Note Minimum dimension 9-E fixed by shoulder 9-D.
Table 12. BSP Torque Stop' Hose - Torque Settings
BSP Hose Size Hexagon (A/F) Nm kgf m lbf ft
in. mm Nm kgf m lbf ft
1/8 14.0 14.0 1.4 10.0
1/4 19.0 27.0 2.7 20.0
3/8 22.0 40.0 4.1 30.0
1/2 27.0 55.0 5.6 40.0
5/8 30.0 65.0 6.6 48.0
3/4 32.0 95.0 9.7 70.0
1 38.0 120.0 12.2 89.0
1 1/4 50.0 189.0 19.3 140.0
1 1/2 55.0 244.0 24.9 180.0
1 - 10
17
Section 1 - General Information Basic
Operation Transporting the Machine Basic
Operation Transporting the Machine
! WARNING
b Lift a unserviceable machine into position on
the trailer.
The safe transit of the load is the
responsibility of the transport contractor and
driver. Any machine, attachments or parts that
may move during transit must be adequately
secured.
Important Put chocks at the front and rear of
all four tyres.
6 Engage the park brake and set the transmission
to the neutral position.
5-2-5-9
Note Before transporting the machine make sure
that you will be obeying the rules and laws of
all the areas that the machine will be carried
through.
7 When the machine is safely in position, lower
the attachment onto the trailer, then stop the
engine.
Make sure that the transporting machine is
suitable. See Static Dimensions (Specifications
Section) for the dimensions of your machine.
8 Install the articulation lock. Refer to
Articulation Lock.
9 Make sure that the total height of the load is
within the regulations, adjust the height if
necessary.
! WARNING
10 Secure the cab in position.
Before moving the machine onto the trailer, make
sure that the trailer and ramp are free from
oil, grease and ice. Remove oil, grease and ice
from the machine tyres. Make sure the machine
will not foul on the ramp angle. See Static
Dimensions in SPECIFICATION section for the
minimum ground clearance of your machine.
11 Put a cover on the exhaust stack.
12 Use the tie-down/lift points A to attach the
machine to the trailer with chains.
Note The tie-down labels identify the correct
positions.
2-2-7-5_1 1 Put the trailer in position
13 Measure the maximum height of the machine
from the ground. Make sure the driver knows the
clearance height before he drives away.
If the machine is serviceable, use any available
position.

• If the machine is unserviceable, you must align
  the trailer with the rear of the machine.
• Put chocks at the front and rear of the trailer
  wheels.
• Make sure the ramps onto the trailer are in the
  correct position and are attached securely.
• Set the loader arm to the road travel position.
  Refer to
• Preparing for Road Travel.
• Move the machine onto the trailer
• a Carefully reverse a serviceable machine onto
  the trailer.

1 - 31
18
Section 1 - General Information Basic
Operation Transporting the Machine
A
A
B

• Fig 56.
• Tie-down/lift points
• Extra set of tie-down points

397160-2
817-01803-4
Fig 57. Tie-down label
1 - 31
19
Section 1 - General Information Basic
Operation Transporting the Machine
Articulation Lock
Drive Position
! WARNING
Transport Position
! WARNING
Always make sure the articulation lock has been
removed before attempting to drive the machine.
The machine cannot be steered with the
articulation lock fitted.
Make sure the articulation lock is in the
transport position before you transport the
machine. The articulation lock must also be in
the transport position if you are carrying out
daily checks or doing any maintenance work in
the articulation danger zone.

• 16-3-1-4_2
• Remove the pivot-pins A and B.
• Put the articulation lock in the toolbox.

If the articulation lock is not in the transport
position you could be crushed between the two
parts of the chassis.
4-3-5-7
The articulation lock is stowed in the machine
toolbox (457 Machines), under the right hand
step (427/437 Machines).

• The articulation lock must be installed with the
  machine in the 'straight ahead' position.
• Manoeuvre the machine to put the front and rear
  wheels in a straight line, then park the machine
  on hard, level ground.
• Remove the articulation lock from its mounting.
• Put the articulation lock C in position, then
  install pivot-pin A, then pivot-pin B into the
  articulation lock as shown.
• When pivot-pin A is installed, if pivot-pin B
  will not go through the holes, turn the steering
  wheel slightly to align the holes for pivot-pin
  B.

812230-2

• Fig 58.
• Pivot-pin
• Pivot-pin
• Articulation lock

1 - 31
20
Section 1 - General Information Basic
Operation Moving a Disabled Machine Moving a
Disabled Machine
Introduction
the ground and crowd the shovel. Secure the
shovel in position.
P4-2025 The machine can be lifted onto a trailer
for transportation. However, you must contact
the nearest JCB Dealer before you try to tow,
winch or push the machine. Towing, winching or
pushing the machine without following the
correct procedure can damage the transmission. If
possible, repair the disabled machine where it
stands.
Note The procedure for preparing the loader arm
will depend on the condition of the machine and
its hydraulic circuits. For this reason you
should contact your JCB Dealer for help and
advice before you do this task.
4 Attach the drawbar (or chain) to the front
chassis side plate hole (left or right).
It is not recommended to tow a disabled machine.
If the machine becomes disabled, the machine
must be made safe, lifted onto a transporter and
moved to a location where maintenance can be
carried out. If towing the machine to a safe
location is unavoidable, do the procedure that
follows before you try to move the machine.
5 Attach the chain to the recovery hitch (if
chains are used).
Front recovery hitch A.
Rear recovery hitch B. (The rear chassis lift
points)
Preparation for Towing
The machine is now ready for towing. Make sure
you understand what the towing driver will be
doing. Obey his instructions and all relevant
regulations.
! CAUTION
Towing a machine too far or too fast can damage
the transmission. Do not tow the machine further
than 10 Km (6 miles). Use a trailer for greater
distances. When towing do not travel faster than
16 km/h (10 mph).
The retrieval points are shown in K Fig 59.
( 1-35).
If the steering wheel has to be turned when the
machine is disabled and the engine is stopped,
push and hold the Secondary Steer System switch.
Refer to Switches.
Use a rigid towbar. If you must use towing
chains, then use two vehicles, One towing
vehicle should be coupled to the front of the
disabled machine. The other towing vehicle
should be couple to the rear of the disabled
machine, to provide braking power.
When the steering wheel is turned, the pump is
heard running and the articulation of the
chassis is felt. Test the switch once a month.
The towing vehicle(s) must have enough pulling
and braking power to move and stop the machine.
Note The full operation of the steering system
is only achieved when the machine is moving.

• 4-2-5-4_2
• Disengage the park brake.
• Set the transmission to neutral.
• Prepare the loader arm

The machines retrieval points conform to
ISO10532, refer to this standard to obtain a
particular machines permissible forces.

1. If the engine and hydraulic systems are not
   damaged, lift the shovel to 900mm (3ft) above the
   ground, then fully 'crowd' the shovel. The
   machine in this position can have a
   straight-pull from the recovery point.
2. If the engine does not work, use the applicable
   equipment to lift the shovel to 900mm (3ft) above

1 - 31
21
Section 1 - General Information Basic
Operation Moving a Disabled Machine
B
A
T010560-7
Fig 59.
A Front recovery hitch B Rear recovery hitch
T033800-2
Fig 60. Important Only pull the machine in the
direction of rotation of the wheels. K Fig 60.
( 1-35).
1 - 31
22
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23
Section 1 - General Information Basic
Operation Lifting the Machine Lifting the Machine
! WARNING
9 Make sure that the lifting eye is directly
above the centre of gravity of the machine.
Communications Bad communications can cause
accidents. Keep people around you informed of
what you will be doing. If you will be working
with other people, make sure any hand signals
that may be used are understood by everybody.
Work sites can be noisy, do not rely on spoken
commands.
10 Lift the machine. Make sure the lifting
equipment does not catch the machine.
! DANGER
Do not stand underneath the raised load during
the lowering procedure. Stand clear and to one
side until the load has been safely lowered.
Make sure that the area is clear of other people
before lowering the load. If you do not follow
these precautions you or others could be killed
or seriously injured.

• INT-2-2-3
• Lower the loader arms to the ground.
• Remove all the attachments. Refer to Attachments.

• 2-3-5-3
• Install the articulation lock. Refer to
  Articulation
• Lock.
• Remove the starter key and leave the machine.

5 Remove all the loose equipment from the
exterior of the machine.
A
6 Check the unladen weight of the machine. Refer to Specifications. ! WARNING A
You Lifting Equipment can be injured if you use faulty lifting equipment. 397160-1 Fig 61.
Make sure that lifting equipment is in good
condition. Make sure that lifting tackle
complies with all local regulations and is
suitable for the job. Make sure that lifting
equipment is strong enough for the job.
A Sling points
A
INT-1-3-7 7 Attach the lifting equipment to the
sling points A. Note The sling point labels
identify the correct positions.
! CAUTION
817-01803-3
Fig 62. Sling point label
When lifting the machine, a suitable spreader
frame must be used to ensure the pull on each
lifting point is vertical and the machine is
level.
4-2-5-7 8 Install a spreader frame to prevent
damage to the machine.
1 - 36
24
Section 1 - General Information Basic
Operation Storage of the Machine Storage of the
Machine
Introduction
Put the Machine into Storage 1 Park the machine
on level, solid ground.
T2-074 If you will not use the machine for an
extended period, you must store the machine
correctly. If you prepare the machine carefully
and apply on-going care you can prevent
deterioration and damage to the machine while it
is in storage.
T2-077
Park the machine in a position where the machine
is easy to get access (in case the machine does
not start at the end of the storage period).
Note JCB Dealers must check stock monthly.
Place suitable timbers under the machine to
eliminate direct contact with the ground.
Storage Area
2 Retract all rams and lower the attachments to
the ground.
The machine can be stored in a temperature range
of
3 Vent the hydraulic system.
-40C to 54C (-40F to 129F).
4 Remove the starter key.
When possible, you must keep the machine in a dry
building or shelter.
5 Apply a thin layer of grease or petroleum jelly
to all exposed ram piston rods.
If only an outdoor storage area is available,
look for a storage area with good drainage.
6 Remove the battery. Charge the battery.
If the machine is to be out of use for an
extended period, careful preparation and
on-going care will minimise the possibility of
deterioration and damage while in storage.
Keep the battery in warm, dry conditions. Charge
the battery periodically.
7 If you keep the machine outdoors, cover the
machine with tarpaulins or plastic sheets.
Prepare the Machine for Storage
T2-076 1 Clean the machine to remove all unwanted
material and corrosive products.
During Storage
T2-078 Operate the machine functions each week to
prevent a build up of rust in the engine and
hydraulic circuits, and to minimise
deterioration of the hydraulic seals.
Dry the machine to remove solvents and moisture.
2 Apply grease to the moving parts. Refer to
Greasing the Machine.
1 Clean the machine to remove all unwanted
material and corrosives.
3 Examine the machine for worn or damaged parts.
Replace if necessary.
Remove the grease or petroleum jelly from the ram
piston rods.
4 Fill the fuel tank to prevent a build up of
condensation in the tank.
2 Install a charged battery. 5 Examine the
coolant condition. Replace if necessary.
3 Examine all fluid levels. Top up if necessary.
6 Examine all fluid levels. Top up if necessary.
4 Start the engine.
1 - 36
25
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