John Deere 1550 Backhoe Operator’s Manual Instant Download (Publication No.OMA42432)

1
1550
BACKHOE
1550 BACKHOE OMA42432 L0 English
PLOW PLANTER WORKS OMA42432 L0
LITHO IN THE U.S.A. ENGLISH
2
Introduction
This saety alert symbol identifies important
safety messages in this manual. When you see this
symbol, be alert to the possibility of personal
injury and carefully read the message that
follows. Unless noted otherwise "right-hand and
left-hand" sides are determined by facing the
direction in which the backhoe operates. Front is
at the bucket and rear is at the backhoe control
ie vers. Record your backhoe model and serial
number in the space provided on page 59. Your
warranty appears on your copy of the purchase
order which you should have received from your
dealer. Meas ureme nts are shown with their
respective Metric equivalents throughout this
operator's manual. These equivalents are the SI
(International System) Units of Measure.
3
1550 BACKHOE DELIVERY CHECK LIST
TO THE DEALER
After the backhoe has been assembled and
lubricated, inspect it thoroughly to be sure it
is functioning properly before delivering it to
the customer. The following check list is a
reminder of points to check. Check off each item
as it is found satisfactory or after proper
adjustment has been made. The John Deere Delivery
Receipt, when properly filled out and signed by
the dealer and customer, verifies that the
predelivery and delivery services were satis-
factorily performed. When delivering this
machine, give the customer a copy of the delivery
receipt and the operator's manual. Explain their
purpose. Be certain to retain your copy of the
packing list for shipping bundle
information. PREDELIVERY CHECK LIST The following
check list is a reminder of points to inspect.
Check off each item as it is found satisfactory
or after proper adjustment is made. C Lubricate
all lubrication points. See pages 23-24.
The following check list is a reminder of very
important information which should be conveyed
directly to the customer at the time the backhoe
is delivered. Check off each item as it is fully
explained to the customer.
E Advise the customer that the life expectancy of
this or any other machine is dependent on regular
maintenance including lubrication and bolt
torque. Tell the customer all about safety
precautions that must be observed while using
this backhoe. When backhoe is transported on a
road or highway at night or during the day,
accessory lights and devices should be used for
adequate warning to operators of other
vehicles. Give the operator's manual to the
customer and explain all operating
adjustments. To the best of my knowledge, this
machine has been delivered ready for field use
and the customer has been fully informed as to
proper care and operation.
0 Check to be sure that all bolts are tight and
all cotter pins are spread. See torque chart on
page 30. Paint all unpainted bolts and nuts and
any parts scratched in shipment. Check hydraulic
system to be sure that all compo- nents are
tight. Operate backhoe. If backhoe does not
operate as illustrated on control lever decal,
the hydraulic hoses are not connected correctly.
See page 53. This backhoe has been tested and, to
the best of my knowledge, is ready for delivery
to the customers
(Date Delivered)
(Signature ot Delivery PersonJ
OWNER REGISTER
NAME
POST OFFICE
COUNTY STATE . . MODEL SERIAL NUMBER DATE
SOLD
(Date Sel-Up)
(Signature oI SeI-Up Person)
OM-A42432-L0
4
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Contents
2-3
Safety
4-5
Preparing For Use
6-10
Attaching to Tractor
Transporting
11
12-16
Operating the Backhoe
17-18
Trouble Shooting
Detaching from Tractor
19-22
Lubrication
23-24
Service
25-28
Attachments
29
Assem bly
30-57
Specifications
58-59
60
Index
QpA
6
Safety
OPERATE BACKHOE SAFELY
2-3 ,
To prevent instability before attaching or
detaching, be sure boom and dipperstick are
extended and bucket is on the ground. Operate
backhoe only from backhoe operator's seat. Lower
stabilizers and bucket to ground before leaving
operator s seat. Never allow anyone to work under
a raised bucket. Do not use the backhoe bucket as
a battering ram. Do not dig under the
stabilizers. Soft ground or sandy soil will
cave-in. Do not drive near the edge of a ditch,
gully or excava- tion. Be careful to prevent the
unit from tipping sideways if it strikes an
excavation, ditch, or other irregularity,
especially on hillsides. The rate of travel on
hillsides and curves should always be such that
there is no danger of tipping. Do not oil,
grease, or adjust the unit while it is in
motion. When digging far to either side and in
close, the bucket may contact the stabilizers and
could cause serious damage. Carry the backhoe low
at all times, especially when wofking on a
sidehill or backing up an incline. Always lower
the bucket to the ground before leaving the
operator's seat. Watch for overhead wires. Never
touch wires with any part of the backhoe. Be sure
bystanders are clear of the backhoe before
lowering stabilizers or moving the boom. Be sure
area is clear of underground obstructions before
digging ROLL-GARD PROTECTIVE EQUIPMENT If
ROLL-GARD protective equipment is loosened or
removed for any reason, make certain all parts
are re installed correctly. Tighten mounting
bolts to proper torque. See pages 32 and 37.
7
Safety 3
PROTECT AGAINST NOISE Prolonged exposure to loud
noise can cause impair- ment or loss of
hearing. Wear a suitable hearing protective
device such as earmuffs (A) or earplugs (B) to
protect against objec- tionable or uncomfortable
loud noises.
AEarmuffs BEar Plugs
AVOID HIGH PRESSURE FLUID LEAKS Escaping fluid
under pressure can have sufiicient force to
penetrate the skin, causing serious injury.
Before disconnecting lines, be sure to relieve
pressure. Before applying pressure, be sure
connections are tight and lines, pipes and hoses
are not damaged. Use a piece of cardboard or
wood, rather than your hands, to search for
leaks. If injured by escaping fluid, see a doctor
at once. Serious infection or reaction can
develop if proper medical treatment is not
administered immediately.
TRANSPORT SAFELY To prevent backhoe movement,
always engage boom lock lever (A) and swing
lock-out (B) when transport- When tfansporting
the unit on a road or highway at night or during
the day, use accessory lights and devices for
adequate warning to the operators of other
vehicles. In this regard, check local
governmental reg- ulations. Various safety lights
and devices are avail- able from your John Deere
dealer. ABoom Lock Lever WSwing Lock-Out
8
Preparing For Use

• PREPARING THE TRACTOR
• Drawbar and 3-Point Hitch Links
• If PTO Pump Attachment is used, remove the
  drawDar. If PTO Pump Attachment is not used,
  locate drawbar in its shortest position.
• Remove 3-point hitch links.
• Remove draft link pin brackets.
• Move rockshaft arms to 3/4 raised position.

za
Hydraulic Oil Level NOTE Tractor must be on a
level surface and engine stopped. Check oil
level. If necessary, fill to proper level on
dipstick (A). IMPORTANT On all tractors, be
sure that the transmission gearshift (C) is in
gear and the range shift lever (B) in neu- tral
to provide lubrication to the transmission. Ac
o4 ADipstick BTransmission Range
Selector CTransm ission Gearshift
9
Preparing For Use 5
Tractor Seat Position seat rearward.
AJ 9342A
Ballast, Wheel Spacing and Tire Inflation To
ensure proper stability, adjust ballast, wheel
spac- ing and tife inflation according to tractor
operator's manual. Use the following implement
code to find the required front ballast in the
tractor operator's manual.
Implement 1550 Backhoe with 8-foot (2 438 mm)
boom 1550 Backhoe with 11-foot (3 353 mm) boom
Implement Code
44
54
CAUTION Only 950 and 1050 tractors can be
equipped with a long boom. When a long boom is
installed, the front tires MUST also have liquid
ballast installed unlese tractor is equipped
with mechanical front wheel drive. See your John
Deere dealer. NOTE. On tractors equipped with a
mom blade or loader, no front-end weight is
required.
10
Attaching to Tractor

• CONNECTING PTO PUMP ATTACHMENT
• Install PTO Pump onto shaft and position strap
  (A) as shown.
• Push tie (B) into drawbar support and install
  drawbar pin and locking pin.
• Engage tractor PTO lever.
• IMPORTANT Be sure suction hose (C) is not
  kinked or damage will occur to pump.
• AStfap B-Tie
• C-ucflo, Hose

A 21 d4
POSITIONING TRACTOR NOTE Re(er to
Assembly for tractor backhoe mounting bracket
installation. CAUTION The backhoe must not be
mounted on tractors having a horizontal exhaust
system. Exhaust will be emitted close to
operator. Position tractor over backhoe and align
backhoe probe and front tractor bracket. Shut
engine off.
11
Attaching to Tractor 7 CONNECTING HYDRAULIC HOSES
850 Tractors - Serial No. 9000 and Below and 950
Tractors - Serial No. 12000 and Below CAUTION
Escaping hydraulic oil under pressure can have
sufficient force to pen- etrate the skin, causing
serious personal injury. Before disconnecting
lines be sure to relieve all pressure. Before
applying pressure to the system, be sure all
con- nections are tight and that lines, pipes and
hoees are not damaged. Oil escaping from a very
small hole can be almost invisible. Use a piece
of cardboard or wood, rather than hands, to
search for suspected leaks. If injured by
escaping hydraulic oil, see a doctor at once.
Serious infection or reac- tion can develop if
proper medical treat- ment is not administered
immediately. IMPORTANT The pressure port is the
top port on backhoe valve. Pressurizing bottom
return valve port will damage O- rings in
valve. Connect pressure (top hose) coupler from
backhoe to tractor s right side.
6-10
On tractor with a selective control valve without
power steering, connect return coupler to left
side of tractor.
A 19347A
On tractor with power steering or without power
steer- ing and without a selective control valve,
connect re- turn coupler to right side of
tractor. Pull selector knob (A) ouMard, fOf
tfaCtors with power steering. NOTE. All oil (low
will be directed to backhoe. Power steering and
other hydraulic functions will be inactive.
ASelector Knob
Continued on next pege
12
8 Attaching io Tractor

• 850 Tractors - Serial No. 9001 and Above, 950
  Tractors - Serial No. 12001 and Above, and 1050
  Tractors
• CAUTION Escaping hydraulic oil under pressure
  can have sufiicient force to pen- etrate the
  skin, causing serious personal injury. Before
  disconnecting lines, be sure to relieve all
  pressure. Before applying pressure to the
  system, be sure all con- nections are tight anlt
  that lines, pipes, and hoses are not damaged.
• Hydraulic oil escaping from a very small hole can
  be almost invisible. Use a piece of cardboard or
  wood, rather than hands, to search for euapected
  leaks.
• If injured by escaping hydraulic oil, see a
  doctor at once. Serious infection or reac- tion
  can develop if proper medical treat- ment is not
  administered immediately.
• IMPORTANT The pressure port is the top port on
  backhoe valve. Pressurizing bottom return valve
  port will damage 0- rings in valve or valve body.
• Disconnect return hose from selector valve and
  attach it to bottom port on backnoe.
• Attach pressure hose from backhoe to selector
• valve.
• Pull selector knob outward to pressurize backhoe.
  NOTE. When selector knob is pulled outward, the
  tractor's hydraulic flow is directed only to the
  backhoe. Hydras/lie flow to the rockshaft and, if
• tractor is equipped, fa the power steering and/or
  selective control valve is slopped, and will not
  operate.

6-10
950 Tractar Illustrated
1050 Tractor Illustrated
13
Attaching to Tractor 9
MOUNTING BACKHOE
CAUTION Escaping hydraulic oil under pressure
can have suflicient force to pen- etrate the
skin, causing serious personal injury. Before
disconnecting lines be sure to relieve all
pressure. Before applying pressure to the
system, be sure all con- nections are tight and
that lines, pipes and hosee are not damaged. Oil
escaping from a very small hole can be almost
invisible. Use a piece of cardboard or wood,
rather than hands, to search for suspected
leaks. If injured by escaping hydraulic oil, see
a doctor at once. serious infection or reac- tion
can develop if proper medical treat- ment is not
administered immediately. 1. (Not Illustrated)
With tractor centered over backhoe main frame,
back tractor only close enough to backhoe to
connect hydraulic hoses.
16-10

• CAUTION Operate backhoe only from op- erator's
  seat.
• To prevent instability before anaching or
  detaching, be eure boom and dipperetick are
  extended and bucket is on ground.
• Start tractor engine and extend dipperstick and
  lower boom to ground.
• Line up probe and bracket by moving stabilizers
• and boom.

4. (Not Illustrated) Back tractor and partially
insert probe into bracket.
Continued on next page
14
10 Attaching to Tractor
5. AdjuSt stabilizers to align pins with
mounting brackets.
6-10

1. Back tractor until pins and probe are inserted
   com- pletely into brackets.
2. Install tapered pins into mounting brackets.

A215d 8
Wfieel Removed for C/arity
15
Transporting
IMPORTANT Lock backhoe boom and swing in
position. When transporting on a public road
keep as far to the right as possible. Position
boom, dipperstick and bucket as shown. Install
safety boom lock (A) and swing lock-out
(B). CAUTION A chain must be used to secure
stabilizers in their highest position. Raise
stabilizers to highest position. CAUTION To
avoid possible injury or ma- chine damage, the
tractor must have ade- quate front end weight
when transporting and operating. CAUTION When
transporting the backhoe on a road or highway at
night or during the day, use accessory lights
and devices for adequate warning to the operators
of other vehicles. In this regard, check local
regula- tions. Various safety lights and devices
are available from your John Deere dealer.
A6afety Boom Lock WSwing Lock-Out
16
Operating The Backhoe
GENERAL
CAUTION Operate backhoe only from op- erator's
seat. Lower stabilisers and bucket before leav-
ing operator's seat. To prevent boom swing,
always engage swing lockout before
dismounting. Never raise tractor with
stabilizer. IMPORTANT Check hydraulic oil level
with boom and dipperstick extended after a
period of operation. IMPORTANT On all
tractors, be sure that the transmission
gearshift is in gear and the range shift lever in
neutral to provide lubrication to the transmis-
sion. IMPORTANT Do not attempt to raise rear of
trac- tor with boom and/or dipper or damage
to cylinders will occur.
12-16
BOOM AND SWING LOCKS IMPORTANT Make sure boom
safety lock (A) is in unlocked position and swing
lock- out (B) is disengaged (up) before
attempting to operate. ABoom Safety Lock WSwlng
LockOut
17
Operating the Backhoe 8 BACKHOE CONTROLS
Stabilizers To lower stabilizers, push stabilizer
levers (A) and (B) forward to raise stabilizers,
pull levers, rearward. Boom and Swing To raise
boom, pull lever (C) back to lower boom push
lever forward. To swing boom to the left, move
lever (C) to the left to swing boom to the
right, move lever to the right. Dipperstick and
Buckets To move dipperstick toward operator, pull
lever (D) rearward to move dipperstick away from
operator, push lever (D) forward. To curl bucket
inward, move lever (D) to the left to dump
bucket outward, move lever (D) to the
right. IMPORTANT Do NOT attempt to raiee rear of
the tractor with boom and/or dipper or damage to
cylinders will occur.
12-16
WLeftHand Steblllzer Lever WRlght-Hand
Stablllzer Lever WBoom and Swing
Lever Dlpperstiek and Bucket Lever
18
14 Operating lhe Backhoe DIGGING
TECHNIQUES Digging Stance
A21054
A--Stabilisers
12-16
CAUTION To avoid possible bodily injury or
damage to buried cable, check for un- derground
obstructions before digging. IMPORTANT When
digging far out to either side or in close, the
bucket could contact the stabilizers (A) and
cause serious damage. Before digging, lower
stabllizers to the ground. Do not raise rear
tractor tires with stabilizers or backhoe. If
equipped with front end loader, De sure loader
bucket (B) is in contact with ground. Do not
raise front tractor tires with bucket during
operation.
Bucket Digging Lower bucket to ground,
simultaneously retract the dipperstick and roll
the bucket until the bucket is full. Raise
bucket, swing and dump into spoil pile.
19
Operating file Backhoe 15
Dipper Digging Lower bucket with cutting teeth
flat on ground. Retract dipperstick until bucket
is half full. Begin to roll
until
bucket back. Continue to retract dipperstick
bucket is full. Raise bucket, swing and dump into
spoil pile.
Moving Tractor With Backhoe
12-16
CDlpper Cylinder
As you dig, it may be necessary to move the
tractor forward. It is permissible to use the
backhoe to position the tractor forward while
digging. IMPORTANT Never use the backhoe to move
the tractor to the left or right. To move the
tractor, raise stabilizers (A) and loader bucket
(if equipped). Extend boom cylinder (B) and lower
backhoe to the ground. IMPORTANT Nevar lift
tractor with backhoa when dipper cylinder ie
fully extended. Extend boom cylinder until weight
is removed from rear tractor wheels. Retract
dipper cylinder (C) to move tractor forward.
20
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16 Operating the Backhoe LIFTING WITH BACKHOE
CAUTION Be sure all chains are securely
connected and avoid sudden boom swing movement.
Never allow anyone under backhoe when
lifting. IMPORTANT Never use backhoe as a towing
de- vice. Your John Deere Backhoe can be used to
lift loads. The lifting capacity is restficted by
the imits of the relief valves or the tractor
stability. Use the following pro- cedures to lift
the maximum load with your backhoe Extend boom
and dipperstick cylinders until the lifting chain
can be attached. Attach chain to dipperstick
approximately 2 inches (50 mm) from bucket pin.
G5702
Retract boom cylinder to raise boom to full
height.
12-16
If necessary, extend dipperstick cylinder. Then
retract the dipperstick cylinder to lift the load.
GS704
22
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the link into your browser. The full manual is
available for immediate download. https//www.ebo
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