Case IH David Brown 885 and 885N Tractors Operator’s Manual Instant Download (Publication No.9-5206)

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DAVID BROWN
Manual for Operators of 885 and 885N
Tractors Standard, Highway and Narrow versions
without Q-cab (For tractor with Q-cab, use the
alternative manual Pub. 9-5203) David Brown
Tractors Limited Meltham Huddersfield England HD7
3AR Publication 9-5206/ExU K May 1978 Re or inted
NOvember 198d
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SAFETY POINTS
Always lock the two foot brake pedals together
when running on the highway. Always ensure that
PTO driven implements are not run faster than
their designed speed, because a mechanical
failure could occur, resulting in personal
injury. Always ensure the PTO (and belt pulley
when fitted) is adequately guarded. Stop the
engine before working on or near a PTO - driven
implement. Always remove loose clothing when
working near moving parts of the tractor, engine
and implements. Always remove the
isolating/starter key from the tractor when
leaving it unattended, especially where children
have access. Always operate the steering and
driving controls with care, for example Don't
swerve or turn sharply at speed. Don't let the
clutch in suddenly going up hill or the tractor
may rear up. Don't brake fiercely, especially
going backwards down hill. Always take extra
care on steeply sloping ground. Move cautiously,
as ihe sudden swing of a heavy implement, or pull
of a trailer, could overturn the tractor. Always
make sure before turning that there is room for
any mounted implement which will swing outwards
at the rear. Always hitch trailers to the
approved drawbar or pick-up hitch which is below
the centre line of the rear axle. Do not hitch
above the centre line of the rear axle. Always
tow the tractor carefully. When towing by rope
with a dead engine, power steering will be
inoperative and the steering will be very
difficult to turn.
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IM PORTANT DONT'S Do Not carry passengers on the
linkages or on the tractor, except in an approved
passenger seat. Do Not drill into the safety
frame or cab. NOTE Any damaged parts should be
replaced immediately with new parts. Bent parts
should not be straightened but replaced and no
welding should be attempted on the safety frame.
Bolts when replaced, must be of the correct
tensile strength. After any accident to a safety
frame it is advisable to report this to your
local safety officer. Do Not lift the tractor by
the cab lifting hooks. These are designed only
for removing a cab from the tractor. Do Not do
any repair or adjustment to a tractor or
implement with the engine running. Pull up the
hand brake before getting down from the tractor.
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INTRODUCTION We recommend that even the most
experienced tractor user reads the Operation and
Regular Maintenance sections of this book de/ore
commencing operations with his new tractor. The
various tasks can in fact be performed by any but
the complete novice, but this book details the
easiest, quickest and most efficient ways of
carrying them out. The most important aspect,
however, is safety, because a tractor can be a
dangerous machine if handled without due caution.
Knowledge gained beforehand from this manual can
prevent accidents. Ensure therefore that it is
made available to all your employees, and anyone
else, before they are asked to operate the
tractor, and that they fully understand all
relevant aspects. The 885 tractor is the
culmination of many years of development and
rigorous field testing. The 3-cylinder diesel
engine and the Selectamatic " hydraulics have
previously obtained remarkably successful results
in field operation and in official tests. Sub-
sequent improvements in these and other features
have made the 885 an exceptionally reliable and
efficient tractor. Finally, the incorporation of
hand and foot throttle controls (except on the
narrow tractor) and of the David Brown
synchromesh gear- box, makes it as easy to handle
as a family car. A great deal of care goes into
the building of every David Brown tractor. The
engine is part run -in, the completed tractor is
road tested and at each stage of assembly it is
checked by a team of Quality Control Inspectors.
The user can help to maintain this in-built
quality by carrying out the simple tasks outlined
in the Regular Maintenance chapter Section 4.
Neglect can lead eventually to major repairs
which are expensive as well as time wasting. It
is a tractor which will amply repay the user
provided that the simple maintenance routines are
carried out regularly.
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A . Tractor number. B. Engine number. C.
/dentification plate. When ordering parts or
with any query always quote the full prefix and
serial numbers as follows Tractor letters and
numbers as stamped on right-hand edge of the
chassis front extension at A and on the
identification plate C, e.g. 885/1/620001. Engine
Numbers as stamped on the flat vertical surface
on the right-hand side of the cylinder block at B
and on the identifica - tion place C, e.g.
355011/18243. For future reference, enter details
of your tractor below
Tractor Serial No.
Engine Serial No.
Tractor Registration No.
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CONTENTS
Page ii iV ix
Safety points Introduction First service
SECTION 1. DESCRIPTION AND OPERATIO N
GENERAL INSTRU MENT PAN EL LEVERS AND
PEDALS Synchromesh transmission STARTING AN D
STOPPING TH E ENG INE SEAT
1 5 8 11 14
SECTION 2. THE SELECTA MATIC HYDRAULIC
SYSTEM INTRODUCTION TRAI LED IM PLEM ENTS SELECTA
MATIC CONTROLS OPERATI NG WITH DEPTH CONTROL
OPERATIN G WITH HEIG HT CONTRO L OPERATI NG WITH
DEPTH WH EEL (TCU) OPERATING WITH EXTERNAL
EQUIPMENT Via 3-way valve Via double-acting
take-off valve(s)
15 15 16 20 21 22 24 26 30
SECTION 3. ADJUSTM ENTS AND SETTINGS LINKAG E
SETTINGS STABILISERS DRAWBAR PICK- UP HITCH
WHEELS AND AXLES Front track (tread) adjustment
Rear track (tread) adjustment Tyre
pressures Ballast POWER TAKE-OFF (PTO) PTO DRIVEN
IM PLEM ENTS BELT PULLEY
33 37 39 41 42 42 45 47 47 49 51 51
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Page
SECTION 4. REGULAR MAINTENANCE INTRODUCTION . .
TABLE OF ROUTINE SERVICE TASKS
53 54 55 57 58 60 61 62 64 FUEL, G REASE AND
ANTI- FREEZE SPECIFICATIONS 65 APPROVED
LUBRICANTS . . .. 6669
DAILY INSPECTION LUBRICATION CHART
.. . .
. . . . .
..
SERVICE TASK A (every 60 hours) SERVICE TASK B
(every 125 hours) . SERVICE TASK C (every 250
hours) . . SERVICE TASK D (every 500 hours)
SERVICE TASK E (every 1000 hours)
. .. . .
SECTION 5. SERVICE INFORMATION INTRODUCTION BONNET
( HOOD) REMOVAL ENGINE Air cleaner Cooling
system Fan belt adjustment Fuel storage Fuel
filter elements Venting the fuel system Injection
pump and governor Sediment bowl Injectors Engine
lubricating oil Oil filter element Valve
clearance Cylinder head tightening CHASSIS Lubrica
tion Front axle Front hub Transmission and
hydraulic system Final drive reductions Hydrostati
c power steering . . Brakes Clutch Belt pulley
unit
71 72
73 74 75 76 77 78 79 80 80 82 82 83 84
85 85 86 87 89 90 93 94 95
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Page
ELECTRICAL Alternator Auxiliary equipment
Fuses Dynamo (Generator) ( Early tractors
only) Starter Wiring
97 97 98 98 99 99
SECTION 6. SPECIFICATION AND DATA GLOSSARY OF ABB
R EVIATIONS ACCESSORIES LIG HTING EQUIPMENT
CHASSIS TYRE PRESSURES ENGINE Speed tables
Performance curves
104 105 106 108 114 115 117 121
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TAKE SPECIAL CARE OF YOUR NEW TRACTOR Although
every engine is tested and run-in at the factory,
care should be taken during the first 25 to 50
hours' use. Avoid excessive speeds or loading. Do
not allow the engine to labour unduly, instead
change to a lower gear. Use the middle range of
engine speeds from 1200 to 1800 rev/min.
Prolonged light load should also be avoided as
this might lead to cylinder wall glazing with
consequent high oil consumption. Best running-in
is achieved by alternating between low/medium and
high (not maximum) loading.
SERVICE PACKS 50-hour service and filter packs
are available from your dealer. Ask for details
and get your pack before starting a service task.

• FIRST SERVICE (50/100 HOURS)
• The first service should be done by a David Brown
  dealer who will carry out a full check on the
  tractor. The main essentials in this service are
  
• Change the fuel filter element.
• Change the engine oil and filter element.
• The transmission gearbox should be flushed and
  the wire mesh and magnetic filter cleaned. A new
  paper filter element should be fitted and the
  gearbox refilled with new oil.
• Change the oil in the final drive reduction
  housings.
• Check the tightness of cylinder head bolts and
  1he valve clearances, and the tightness of main
  external nuts and bolts especially rear wheel
  nuts.
• NOTE To remove any contaminants which may build
  up in the oil due to initial bedding in, it is
  essential to drain the transmission oil and
  refill with new oil at the 50/100 hour service.

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SECTION 1. DESCRIPTION AND OPERATION GENERAL
INSTRUMENT PANEL
B
J
C
A M FIG URE 1/1. INSTRU MENT PANEL

• IsoIatingStarter switch
• Light switch
• Enpine speed indicator (or speedometer)
• Charge warning light (red)
• Enpine oil warning light (green)
• Transmission filter warning
• iipht (yellow)

• G. Temperature gauge
• H. Horn push button
• fuel paupe
• Direction signal switch
• Hazard warning lights switch
• Enpine stop control
• Hand throttle

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• Engine oil warning light
• The green light is illuminated when oil pressure
  is too low. Ensure that it lights when the
  starter swiich is turned on and goes out when the
  engine runs.
• Charge warning light
• The red light is illuminated when the starter
  switch is turned on but should extinguish as soon
  as the alternator commences to charge.
• Transmission filter warning light
• When the fall in pressure across the full flow
  filter element in the hydraulic system is high
  enough to open the filter by-pass valve and allow
  oil to by-pass the filter element, the yellow
  warning light illuminates. This may occur (a)
  when the filter element is blocked with dirt and
  requires changing for a new one or
• when the oil is cold and engine speed is high.
• It also lights when the starter switch is turned
  on and the driver should check that it lights
  each time before starting the engine. A faulty
  bulb should be replaced as soon as it fails.
• If the bulb glows or flickers at idling speeds,
  this should be ignored.
• The warning light may illuminate at less than
  full engine speeds when the oil is cold. The
  engine speed should be adjusted so that the light
  is not kept on for more than a few minutes
  otherwise proper filtering of the oil will not
  take place.
• As the filter element becomes blocked with dirt,
  the warning light will come on at progressively
  lower engine speeds so that, even when 1he oil is
  warm, full working speed may not be achieved
  without causing the bulb to light.
• When the bulb lights at 1800 r/m in after a
  warming up period of 30 mi nutes the fu II flow
  filter element must be changed for a new one at
  the first opportunity.
• Light switch
• This has 4 positions
• Off
• Side and Tail
• Side, tail and head (low beam)
• Side, tail and head (high beam)
• The rear plough lamp is controlled by its own
  switch, mounted on the lamp housing. The lamp can
  be switched on when the main light switch on the
  instrument panel is in any of the positions 2, 3
  or 4.

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Eng ine speed indicator The engine speed
indicator (rev counter) fitted to the instrument
panel, shows the engine revolutions per minute
and should be used in conjunction with the chart
attached to the bonnet (hood) in order to
determine the travel speed of the tractor (see
Fig. 1/2) . The engine speed is marked along the
bottom edge of the chart. An imaginary vertical
Iine projected upwards will cross the various
horizontal gear bands at the appropriate speed.
The travel speed in any gear can, therefore, be
obtained by first reading the engine speed
indicator and transferring to the
chart. Alternatively, any required travel speed
in an appropriate gear can be projected downwards
and the necessary engine speed determined. The
throttle can then be set \o give the required
engine speed as observed on the engg ne speed
indicator.
21 23
/ A
/ B
C

• FIG URE 1/2. G EAR/SPEED CHART
• Blue line at 540 ri min PT 0 C Ped line aT 540
  r min P TO
• Red line at 1000 r min PT O in high ra Rio
• Alternative gears speed chans are available for
  diffe/eni Tyre sizes and in mife/h or km/h
  versions.
• Use of the chart for PTO work is faciliiated by
  the provision of two red vertical lines
  corresponding to the high PTO ratio and a blue
  line for the low PTO ratio (also single ratio
  PTO) . Each line is marked immediately above the
  engine speed with the ratio (high or low) and the
  PTO speed (540 or 1 000) . Therefore. having
  decided which PTO speed and ratio is required for
  the type of work in hand, it is only necessary to
  inspect the appro- priate vertical coloured line
  and note which horizontal band bears the nearest
  desired travel speed and choose the gear ratio
  shown at the left - hand edge.

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The speed chart gives accurate speeds for the
tyres fitted to the tractor when new. If it is
desired to fit tyres of a different size, it is
only necessary to obtain a new chart from your
dealer for fixing to the bonnet top. The belt
pulley should be used at a PTO speed of 1000
r/min, B, Fig. 1/2 and may therefore only be
fitted to tractors having the multi -speed
PTO. Highway tractors are equipped with a
speedometer which indicates road speeds in top
gear. Direction signal switch (if fitted) Move
the switch to the left to operate the left-hand
indicators and to the right for the right-hand
indicators. Do not forget to return the switch to
centre position after use. Hazard warning lights
switch (if fitted ) When the switch is pulled out
all four flashers work together. This is useful
when working on the highway at very slow speeds.
Make sure it is switched off before proceeding
normally on the road. Engine stop control This
cuts off the fuel supply to the injectors. Before
starting the engine pull out the stop control and
lower into 1he retaining slot. To stop lift the
knob and allow it to move forward.
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LEVERS AND PEDALS
D B

• FIGURE 1/3. PEDALS
• Clutch peda/
• Bra/ce pedals
• Locking bar
• Foot throttle (not 885 Narrow)
• Use of the throttles
• The rated speed of the engine is 1800 r/min and
  may be set by observing the engine speed
  indicator. This speed should be considered the
  maximum for most purposes to conserve fuel and to
  prolong engine life. It also gives the standard
  PTO speed of 540 r/min.
• The foot throttle will be found particularly
  convenient for road work and for jobs involving
  frequent gear changing, e.g. loader work.
• To obtain the full range of engine speeds from
  the foot throttle, the hand throttle should be
  set to the idling position.

DA N GER Always engage the lock ing bar, C, F
ig. 1 /3, when driving on the road, when towing
a trailer or when travel ling fasl. U se of i
dependent brake or brakes badly out of Adj
ustnlent will cause a dangerous swerve with the
tossi bi lity of overtu rni ng the tractor.
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Brakes Twin foot pedals at the right-hand side
give independent control of the brakes to assist
steering in confined spaces.
CAUTION The balance of the braking system should be checked each week and also whenever the tractor is to be
taken on the road or driven at higher speeds. This is par-
ticularly necessary when one brake has been used much more
than the other for turning at headlands etc. If this precaution
is not taken, an unexpected and dangerous swerve may occur.
Highway tractors are fitted with hydraulic brakes
on the front wheels with a single pedal actuating
both these and the mechanical rear wheel brakes
together. Independent rear wheel braking is not
available where four wheel brakes are
fitted. Parkir9 / ak 'The handle A, Fig. 1/4
should be pulled up- wards with the hand grip
turned to the right. away from the driver.
Application is easier if the foot brake is
pressed at the same time. To release, turn the
hand grip to the Iefi towards the driver and
lower as shown at 8.

• FIG U f\ E 1 /4. PAR KI NG BRAK E AND DIFF - LOC
  K
• Parking brake on C. Differential /ock pedal
• Parking brat e off

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Clutch There are two main stages of pedal
movement
FIG URE 1 /5. LIVE DRIVE CLUTCH

1. Free-play
2. Transmission disengaged

C. Transmission and PTO disengageI
Stage 1. Complete disengagement of the
transmission clutch is felt by an increase in
pedal pressure at point B, Fig. 1/5. The pedal
should always be pushed down to this point, at
which the transmission is disengaged. Slipping
the clutch to reduce forward speed or to clear a
heavy patch, is detrimental to clutch
life. Therefore, to reduce forward speed on PTO
tasks such as baling etc., even if only
temporarily over a heavy patch, disengage the
transmission clutch entirely and change gear.
S1op altogether if you are going to change down
to first gear, reverse, or to another range. You
need not stop, however, when changing down from
third to second, nor to return to a higher
gear. As much as possible, avoid operating the
clulch at full engine speed and thereby limit
wear of the clutch plates. When moving ofi with a
loaded trailer for example, engine speed should
be kept as low as possible. Obtain full
engagement of the clutch as quickly as is
possible without stalling, and then increase the
engine speed as desired. Stage 2. Fully
depressing the clutch pedal (C, Fig. 1/5) also
disengages the drive to the PTO and the hydraulic
pump. If the PTO clutch is not used frequently
the pedal should nevertheless be fully operated
once a week, freeing the PTO clutch plate and
minimizing the possibility of its binding.
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