JCB 435 Wheeled Loader Service Repair Manual Instant Download

1
Service Manual
Wheled Loader From M/C No. 523778
JCB SERVICE O ROCESTER, STAFFOBDSHIRE, ST14 SLS.
ENGLAND. TEL ROCESTER [phone]
'
Publication No. 9803/4300 published by th Technie
Pu6lica\ions Oept. of JCB Sen/lce. Rocester,
SMlodshke. England.
2
Contents
1 2 3 4
General
Hydraulics
Attachments
Body and Framework
Engine
5
6
Transmission
Axles
Brakes
8
9 10
Hydraulic Steering
Electrics
11
Service Tools
Index
Issue 1
9803/4300
3
Introduction This publication is designed for
the benefit of JCB Distributor Service Engineers
who are receiving or have received training by
the JCB Technical Training Department. It is
assumed that such personnel have a sound
knowledge of good workshop practice, safety
procedures and general techniques associated with
the maintenance and repair of hydraulic
earthmoving equipment. Details of such may
Iherelore be om itted rom this manual, the
primary intention being to convey the more
specialised information concerning particular
aspects ol lhe machine or component in
question. Renewal of oil seals, gaskets, etc.
and any component showing obvious wear or damage
is expected. It is also expecled that components
will be thoroughly cleaned and lubricated where
appropriate, also that any opened hose or pipe
connections will be blanked \o preven1 entry of
dirt and excessive loss of hydraulic fluid. For
convenience the manual is compiled in sections,
e.g. "Hydraulics", "Electr ics" etc., but to find
details of a specific componen I or its
application, reference should be made to the
alphabetical index at the back of the
manual. Excepl wilere a max imum and minimum I
igure is given, torque setlings quoted in the
text are intended as 'me an' figures which may be
varied by or - 3. Where no I igure is quoted
in the text, reer to page 1/1 - 2. 'Left Hand'
and 'Rig ht Hand' are as viewed from the rear of
the machine looking forward.

• WARNING
• Asbestos
• Asbestos dust can dam ag your Iung s. So me
  engine joints and gaskets may contain
  asbestos. Take the following precautions when
  working on them.
• Wear a ace mask and glov es.
• Work in a well ventilated area and do not smoke.
• Do not use a rotary wire brush, use a han d
  scraper.

WARNING Fluoroelastomeric Materials Certain seals
and gaskets (e.g. crankshaft oil seal) on JCB
machines comain fluoroelastomeric materials such
as Vito n,
Fuorel and Technollon. Fluoroelastameric material
s
subjected to high temperatures can produce highly
corrosive hydrofluoric acid. THIS ACID CAN
SEVERELY BURN.
New fluoroelastomeric components at ambient
temperature require no special safety precautions.
Used fluoroelastomeric components whose
temperatures have not exceeded 300C require
no special safety pr ecautions. If evidence of
decomposition (e.g. charring) is found, refer to
the next paragraph lor safety instructions DO NOT
TOUCH COMPONENT OR SURROUNDING AREA. Used
tluoroelastomeric components subjected to
temperatures greater than 300C (e.g. engine
fire) must be
4 Make sure the material 1o be removed is wet
with oil or water to contain loose particles.
5
Place all material into plast ic bags and dispose
of in
accord ance wilh local regulations.
cEu- -8

• I reated using the following safety procedure.
  Make sure that heavy duty gloves and special
  safety glasses are worn
• Remove and place material into plastic bags.
• Thoroughly wash contaminated area with 10
  calcium hydroxide or other suitable alkali
  solution, if necessary use wire wool to remoVe
  burnt remains.
• Thoro ughIy wash with detergent and water.
• Contain all removed material, gloves etc used in
  this operation in sealed plastic bags and dispose
  o in accordance with Local Authority
  Regulations.
• DO NOT BURN FLUOROELASTOMERIC MATERIALS.
• OUT - 3 - 3 - 5

Issue 2
9803/4300
4
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5
Colou r Coding The following colour coding, used
on illustrations to denote various conditions of
oil pressure and flow, is standardised throughout
JC B Service Publications.
Neutral Circuit Pressure.
Light Oil subjected to a partial vacuum
Green due to a drop in pressure (cavi- tation).
Red
Pressure generated by the opera- tion of a
service. Depending on application this may be
anything beMeen Neutral Circuit Pressure and M .
R. V. Operating Pressure.
Yellow Oil trapped within a chamber or line,
preventing movement of components (lock-up).
Pink
Orange Oil pressure used in a controlling device
(servoI.
Pressure that is above Neutral Circuit
Pressure but lower than that denoted by Red.
_.
Exhaust.
6
General
1
1 - 1
1 - 1
ENGINE LUBRICANTS and CAPACITIES Note To pro
mote thoro ugh running-in, engines of new
machines are I illed al the factory with JCB
10W/30 Multigrade oil. This oil should be drained
all er the first 100 hours operation and the
engine filled with the recommend ed grade as
shown in the engine lubr ication chart. JCB 1
0W/30 Multigrade should also be used for the
irst 100 hours operation whenever a new or
recondit ioned engine is fitted into the machine.
Altern at ively, where a new or recondi\ ioned
engine requires proleelion against corrosion
during prolong ed storage, Mobil arm a 524 may be
used during the storag e period and far the irst
100 hours oper at ion. It is es sential that both
these oils are r eplaced by the recomm ended
lubricant after the f irst 100 hours oper at
ion. hem Lubricant Capacity Engine Oil See
chart below 14.5 litres 3.2 UK gals Fuel 222.5
litres 49 UK gals Transm ission \ JCB Torque
Converter Fluid (SAE 10W) 24.5 5.4 UK gals
Hydraulic/Brake Sy stern JCB Special Hydraulic
Fluid 25 litres 5.5 UK gals Rear Axle 25
litres 5.5 UK gals
Grease Points
Mobilgrease Special
Engine coolant
See page 5/5-1 for Ant i-reeze recommendations
23 litres
7.5 UK gals
ENGINE LUBRICATION CHART - PERKINS 1000 SERIES -
MODEL YB
JCB Torque Converter Fluid (10W) JCB Super
Universal Agricultural (10W/30) JCB 15W/40
Multigrade JCB 20W/20 JCB SAE 30 Engine
Oil SAE 40 APICD MIL-L-2104C
-20 -1 0 0 10 20 30 40 50 AMBIENT TEMPERATURE
(DEGREES C)
-30
' ThiS oil meets the following specifications
API CD , MIL-L-46 152, MIL-L-2104D. Denotes
Lithium based No. 2 consistency gre ase. The
hydraulic system capacity is approx imate and
will vary depending on the type of attachments
fitted. Fill with ram s closed.
Issue 3
7
General
1
1-2
1 - 2
TOROUE SETTINGS Use only wh ere no torq ue sett
ing is specified in the Iexl. Values are for dry
thre ads and may be within three per cent of the
ig ures staled. For lubr icated thre ads the
values sho uld be REDUCED by one Ihird. UNF
Grade 'S Bohs
Hexagon (A/F) in
Torque Sellings kgl m
Bolt Size
Ib t
(mm)
Nm
(6.3) 14 1.4 10
(7. 9) 28 2.8 20
(9.5) 49 5.0 36
(11.1 ) 7B 8.0 58
(12.7) 117 12.0 87
(14.3) 170 17.3 125
(15.9) 238 24.3 175
(19.0) 407 44 .5 300
la (22.2) 1/ s 650 66.3 480
(25.4) 970 99.0 715
(3 1.7) 1/e 1940 198.0 1430
(3 8.1) 2'/, 3390 345.0 2500
Melric Grade 8.8 Bohs
Hexagon (A/F) mm
Torque Settings kgs m 0.7 5
Bolt Size
tbl !l
(mm)
Nm
(5)
8
7
M6 (6) 10 12 1.2 9
MB (8) 13 f8 3.0 21
M10 (4 0) 17 56 5.7 42
M12 (12) 19 98 10 72
M16 (16) 24 244 25 180
M20 (20) 30 476 48 352
M24 (24) 36 822 B4 607
M30 (30) 46 1633 166 1205
M36 (36) 55 2654 291 Z105
ZF AXLES (USE ONLY ON ZF AXLES) - IN Nm
Metric Coarse Thread
Metric Fine Thread
Grade 8.B 1 0.9 12.9
Grade 6.9 8.8 1 0.9 12.9
Ball Size
6.9
Bolt Size
8.5 10 14 17 21 25 35 41 41 49 69 83 72 86 120 145
115 135 190 230 180 210 295 355 245 290 400 485 3
45 410 580 690 465 550 780 930 600 710 1000
1200 89D 1050 1500 1800 1200 1450 2000 2400
M 8 x 1 M 10 x 1.25 M 12 x .25 M 12 x 1.5 M 14 x
1.5 M 16 x 1.5 M 18 x 1.5 M 20 x 1.5 M 22 x 1.5 M
24 x 2 M 27 x 2 M 30 x 2
M 6 M 8 MlO M 12 M 14 M 16 M 1B M 20 M 22 M 24 M
27 M 30
23 27 38 45 44 52 73 88 80 95 135 160 76 90 125 15
0 125 150 210 250 190 225 315 380 275 325 460 550
385 460 640 770 520 610 860 1050 650 780 1100
1300 970 1150 1600 1950 1350 1600 2250 2700
Note All bolts used on JCB machin es are high
tensile and must not be repaced by bolts ol a
lesser tensile specification.
9803/4300
Issue 1
8
General
1
1-3
1 - 3
FITTING THE ARTICULATION SAFETY LOCK
WARNING
Make sure the articulat ion safety lock is itted
befo re transporting the machine. The
articulation safety lock m ust also be fitted if
you are inspecting and/or doing any m aintenance
work in the articulation danger
zone. GEN-oo Removing Installing
1 Remove pins A and return the lack to the stowed
position as shown a\ C. Repace the pins to
secure the lock.
1 Position the machine straight ahead, or fuIy
articulated, apply the parking brake, put the
transmission in neutral and stop the engine.

• Remove pins A and move the lock from the stowed
  position into one of the two lock positions,
  shown at B.
• Fit pins A to lock the machine rigid.
• Note If the machine is slightly out of alignment
  it will not be possible to fil both pins. Under
  these circumstances continue as follows
• Fit one pin corr eclly in position and the other
  pin partly
• through.
• Restart the engine and turn the steering wheel
  slightly to
• allow the the partly fitted pin to drop into
  position.
• Switch the engine off and check thai the pin has
  located
• properly.

9B03/4300
Issue 1
9
1
General
1
1 - 4
1 - 4
FITTING THE LOADER ARM SAFETY STRUT
WARNING
Raised loader arms can drop suddenly and cause
serious injury. Before working under raised
loader arms, it the loader arm safety strut.
GCN-OO5
Installing
Removing
1 Make sure the parking brake is on and the
transmission in neut ral. Raise the loader arm s
so that there is enough clea rance to remo ve the
safety strut A from the ram piston. Stop the
engine when the loader arm s have been raised.
1 Empty the shovel and raise the arms so there
is enough clearance to fit the strut A on the ram
piston, apply the parking brake put the
transmission in neutral and stop the engine.
2 Remove the strut from its stowage position and
it over the ram pislon rod as shown. Secure the
strut with screw B.
2
Release screw B and remove the strut from the
ram piston. Secure the strut in its stowage
position.
3 Start the engine and slowly lower the loader
arm onto the safety strut. Stop I he movement
immediately the weight of the loader arms are
suppo rted by lhe safety strut. Note Lower the
lo ader arms carelully onto the safety strut. 'Fe
ather' the loader arm control lever to lower the
arm s slowly.
0g7 008
Issue 1
9B03/4300
10
General
1
1
2 - 1
2 - 1
SERVICE SCHEDULES
EVERY 50 OPERATING HOURS OR WEEKLY whichever
occurs first
EVERY 10 OPERATING HOURS OR DAILY whichever
occurs first
CLEAN
Do the Daily jobs plus

1. Machine generally
2. Engine air filter pre-cleaner

CHECK (Engine Slopped)

1. Hydraulic oil cooler connections
2. Transmission oil cooler connections
3. Radiator and hoses condition
4. Fan/Air cond. compressor belt tension and
   condition
5. Optional attachments (as needed)

CHECK (Engine Stopped)

1. Generally for damage
2. Engine coolanI level and condition
3. Engine oil level and condition
4. Engine gener ally for leaks
5. Hydraulic fluid level
6. Hyd raulic system for leaks
7. Tyre pressures and condition
8. Tightness of wheel nuts
9. ROPS/FOPS structure
10. Operation of warning lights and audible alarm
11. Windscreen washer eveI
12. Seat belt condition and security

GREASE
6 Bucket pivot pins
OIL

1. All linkage points
2. All cables
3. All hinges

• CHECK (Engine Running)
• Transmission oil level
• Instrument readings, warning lights and audible
  alarm
• Operation of all electrical equipment IB Service
  brake operation
• Steering operation
• Operation oi all hydraulic services
• Optional Attachments (as needed)
• Exhaust for excessive smoke
• Parking brake operation

Is sue 2
9803/4300
11
General
1
1
2 - 2
2-2
SERVICE SCHEDULES (continued)
EVERY 100 OPERATING HOURS OR TWO WEEKS whichever
occurs first
INITIAL 100 HOUR SERVICE (new machines only) Do
the Daily jobs through to 50 hours plus
Do the Daily jobs through la 50 hours plus
CLEAN

1. Fuel lift pump gauze
2. Cab heater filter
3. Fuel sediment trap

CLEAN
1 Fuel sediment trap
GREASE
CHECK (Engine Stopped)

• Pivot pin grease seals
• Valve tip clearances
• Rear axle pivot end float
• Axle oil levels
• B Axle mounting bots for tightness
• Engine mounting bolts for tightness
• Transmission mounting bolts for tightness
• Propshaft security
• Battery electrolyte level and condition
• Battery terminal condition and lightness
• Wiring harnesses for chafing
• Exhaust system security
• Engine air inlet system security

1. Loader pivot pins
2. Steer ram pivot pins
3. Lower centre pivot
4. Rear axle cradle pivots

DRAIN

1. Fuel filters
2. Fuel sediment trap

EVERY 250 OPERATING HOURS OR MONTHLY whichever
occurs llrst
CHECK (Engine Running)
Do the Daily jobs through to 100 hours plus

1. MRV pressure
2. ARV pressure

CLEAN
19 Priority valve pressure 19 Priority valve pressure 1 Cab hea\er filter (or weekly under very dusty conditions)
20 Steering MRV 20 Steering MRV
Servo pressure CHECK (Engine Stopped) Servo accumulator pr-ssure Servo pressure CHECK (Engine Stopped) Servo accumulator pr-ssure Servo pressure CHECK (Engine Stopped) Servo accumulator pr-ssure Servo pressure CHECK (Engine Stopped) Servo accumulator pr-ssure
23 Brake accumulator pressure 2 Front and rear axle oil level
24 Idling speed 3 Front and rear axle hubs oil level
25 Engine max. no oad spaed (flight speed) 4 All pivot pin grease seals
26 Engine pulled down speed 5 Hoses and pipework for whaling and damage
27 Torque converter stall speed 6 Fuel system for leaks and contamination
28 Torque convertsr main line pressure 7 Air cleaner hose security
29 Clulch pressure 8 Battery electrolyte level and condition
30 Operation of clutch cut-off 9 Wiring harness for chafing
31 Operation of servo controls 10 Condition of ram piston rods
32 Operation of Engine and Transmission controls
CHECK (Engine Running) CHANGE CHECK (Engine Running) CHANGE CHECK (Engine Running) CHANGE CHECK (Engine Running) CHANGE
11 Air conditioning filter/drier sight glass for
fluid (with Air conditioning system running)

1. Engine oil
2. Engine oil filter canister
3. Fuel filter element
4. Hydraulic filter element
5. Transmission oil filter canister
6. Hydraulic servo supply filter

CHANGE

1. Engine oil
2. Engine oil filter canister
3. Fuel filter element

GREASE
GREASE

1. Articulation and steer pivot pins
2. Loader pivot pins

15 Intermediate propshaft universal joints
Issue 3
9803/4300
12
General
1
1
2 - 3
2 - 3
SERVICE SCHEDULES (continued)
EVERY 1000 OPERATING HOURS OR SIX
MONTHS whichever occurs Ilrst
EVERY 500 OPERATING HOURS OR THREE
MONTHS whichever occurs first
Do the Daily jobs through to 250 hours plus
Do the Daily jobs through to 500 hours plus

• CLEAN
• Air fiter dusl valve CHECK (Engine Stopped)
• Engine compression
• CHANGE

CLEAN

1. Banery terminals (apply petroleum jelly)
2. Fuel lift pump gauze
3. Transmission strainer gauze

CHECK (Englne Stopped)

1. Ex haust system security
2. Engine mounting bohs for tightness
3. Brake and servo accumulator nitrogen pressure

pre-charge

1. Air filter outer element
2. Axle oil
3. Transmission oil (clean strainer)

CHECK (Engine Running)
GREASE 6 Front and rear propshaft universal
joints

• MRV pressure
• ARV pressure
• Steering relief valve pressure
• Servo pressure
• Clutch oil pressure
• Torque converter main line pressure
• Brake accumulator pressure (charging pressure)
• Idling speed
• Engine pulled down speed
• 16 Engine max. no load speed (flight speed)
• 17 Operation of clutch cut-off

EVERY 2000 OPERATING HOURS OR YEARLY whichever
occurs first
Do the Daily jobs throug h to 1 000 hours plus
CLEAN

1. Clean engine injectors (and lesl)
2. Turbocharger impeller and compressor casings
3. Hydraulic tank breather filter
4. Emergency steer pump strainer (when fitted)

CHANGE

1. Transmission oil tiller canister
2. Hydraulic servo supply filter
3. Hydraulic tilter element

CHECK (Engine Stopped) 5 Valve tip
clearances CHANGE
GREASE
21 Upper centre pivot

1. Air filter inner element
2. Engine coolant (clean system)
3. Hydraulic fluid (clean suction strainer)

9803/4300
Issue 4
13
General
1
1
3 - 1
3 - 1
GREASING Loader Arms tor interval see Service
Schedule For each grease point ident ified,
lhere is another on lhe other side of the
machine. 12 grease points each side - Total 24
grease points. Norm ally two strokes o the gre
ase gun should be sufficient. Stop greasing when
mesh grease appears at the joint. CAUTION II
the loader arms need to be raised for
greasing, then it the loader arm saely strut.
9803/4300
Issue 1
14
General
1
3-2
3 - 2
GREASING Centre Pivot (upper and lower) - (or
interval see Service Schedule Total of 3 grease
points
Make sure the articulation lock is fitted before
greasing the centre pivot. GEN-006
Steer Ram Pins - for interval see Service
Schedule For each grease point identified, there
is another on the other side of the machine. 2
grease points each side - Total 4 grease points.
WARNING
Make sure the articulation lock is itted beore
greasing the steer ram pins.
9803/4300
Issue I
15
1
General
1
3 - 3 Propshafts - for interval see Sarvica
Schedule Total 7 grease points
Male the machine safe befora working underneath
it. Park the machine on level ground, lower the
arms. Apply the parking brake, put the
transmission in neutral and stop the engine.
Chock both sides of all four wheels. Disconnect
lhe ba\tery, to prevent the engine baing started
while you are beneath the machine.
9803/4300
Issue 2
16
1
1
General
3 - 4
3-4
Axle Cradle Pivots - For interval see Servìcø
Schedule Total 2 grease points
130D80
9803/4300
Issue I
17
2
Hydraulics
2
1 - 1
1 - 1
TECHNICAL DATA Pump

• Type
• Vickers fiXed displacement double pump
• with flow divider valve in end section
• Flow at 2300 rev/min and system pressure
• Shaft end
• Cover end
• Priority flow Pressure rating

Ref No. - 2520VQP21 ABS191DB1B20 276
154 litres/min (33.88 UK gal/min) 62 litres/min
(13.64 UK gal/min) 4.7 litres/min (1.0 UK
gal/min) 210 bar (3045 Ibf/in)
Note The flow from the large section of the pump
is directed to the oader valve by means of the
steering circuit and a priority valve. Flow from
the small section is directed to the servo hand
control and brake system, priority being given to
the braking system. Loader VaIve

• Type
• Hamworthy
• 3 Spool servo operated wilh electric detent lor
  bucket reset spool and lift arms reset/ float
  selection spool. Spring-centred third spool or
  clam shovel operation.
• 4 Spool, as 3 spool but with additional
  spring-centred founh

MVATV059 DRF 4VS
spool. To lollow
Services Operated - Spool 1 Clam
Spool 2 Spool 3 Shovel Loader arms
- Spool 4 Optional
Relief Valve Operating Pressures ba, kgf/cmm Ibf/in"
Main Relief Valve (M.R.V.) 207 211 3000
Auxiliary Relief Valves (A.R.V.) Shovel Ram Head Side 172 175 z4g4
Shovel Ram Rod Side 241 246 a4gs
Lift Ram Head Side 296 302 42g2
Servo Relief Valve 31 32 450
Back Pressure Valve 20 Z0.4 290
Filter By-pass pressure
22
1.5
1.53
Rams
Bore
Rod Dia.
Stroke
mm in mm in mm in
Shovel 120 4.72 65 2.56 745 29.330
Lift 130 5.118 70 2.75ô 736 28.976
Steer 80 3.150 50 1. 969 308 1 2.126
Ram Tor que Settings Nm Kgf m Ibf ft
Piston head (all rams) 405 41 298
End cap (all rams) 67B 67 500
8803/4300
Issue 2
18
2
2
Hydraulics
1-2
1 - 2
GENERAL DESCRIPTION The main components of the
435 Wheeled Loader hydraulic system are lhe tank,
the pump, the servo control valve, the load er
valve block, the brake vaIve, the s!eer unit and
pr ior i\ y vaive, \he rams and f illers. (For
generaI descriptions ol the brakes and hydraulic
steer ing see the relevant sections). The pump
is driven by the engine and delivers pressurised
oil to the valves. The pump has a double section,
I low from the large section is directed to the
loader valve block via the steer circuit and
prior il y valve. Flow Irom the smaher section ol
the pump is directed to the servo control valve
and to the brake system, priority is given ta the
brake syst em. When the servo control valve is
operated, servo pressure oi is directed to the
loader valve block, here servo pressure causes
the selected ram service spool within the valve
block to move. When the spool is in its
appropriate position, main flaw pressurised oil
is diverted to one end of the selected ram. The
pressurised oil forces the ram's pislon along the
bore of the ram. As the piston moves, it pushes
oil at the other end of the ram into the tank via
a main exhaust hose and filler. Relief valves in
the system prevent the pressure rom rising too
high.
9B03/4300
issue 1
19
2
2
Hydraulics
2 - 1
2 - 1
HYDRAUIJC FLU\D LE\/EL
HDRAUMC FILTER
Check Level - for interval see Service Schedule

• Renew element - for interval see Service Schedule
• Remove the hydraulic tank cap B.
• Remove screws C, cover plate D and seal E.

Fine jets o hydraulic oil at high pressure can
penetrate the skin. Do not use your fingers to
check or hydr aulic oil leaks. Do not put your
face close to suspected leaks. Hold a piece of
cardboard close to suspected leaks and then
inspect the cardboard lor signs of hydraulic oil.
II hydrauic oil penetrates your skin, get
medical help immediately. H"D00
3 Pull out the complete element assembly F and
seals G.
4 Remove the nut and spring H. Remove filter
eIement from spindIe and cean magnets J.
5 Re-assemble using a new filter element and new
seals. Tighten screws C to 7Nm (5Ibf ft)
Before checking the (luid level, place the
machine on firm level ground. Lower the shovel to
the ground.
6 Check the hydraulic fluid leve at A, if
necessary, lop up hydraulic tank. Retit cap B.
Fluid level should be between 1he two marks on
sight tube A.
If required, top up at B with hydraulic fluid
specitied on page 1/1 -1.
9B03/4300
Is sue 1
20
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2
Hydraulics
2
2-2
2 - 2
HYDRAUMC TANK BREATHER
HYDRAULIC FLUID/STFIAINER
Clean - tar interval see Service Schedule
Change Fluid/Clean Strainer - for interval see
Service Schedule
1 Remove screw K, washer L and cap M.
1 Rest bucket on the ground, stop engine and
remove plug A to drain fluid.
2 Remove filter N and wash in clean paraffin.
2 When the tank is emply, remove bolts B and
plate D to gain access to strainer E.
3 Clean inside cap and re-assemble onto valve
body P.
Unscrew handle F, remove and wash the strainer.
Fit the strainer onto boss G, make sure that the
face with seal H is placed onto the boss first as
shown.
4

• Reit and tighten handIe F.
• Reit plate D with a new gasket J. Tighten bolts
  B evenly
• to specified lorque (see table).
• Refill tank wilh hydraulic lluid specified on
  page /1- .
• Check level at C.
• Torque Settings

Item B
Nm 20
kgf m 2.0
Ibf It 15
9803/4300
Issue 1
22
2
2
Hydraulics
2-3
2 - 3

• HYDRAULIC SERVO SUPPLY FUTER
• Renew Element - tor in/erva/ see Service Schedule
• Unscrew bowl A.
• Remove and discard element B.
• Clean all metal parts and renew element, make
  sure that
• new 'O' rings C and D are in position.
• Refit bowl. Tighten to 35Nm (28 Ibf tt) maximum.
• Note If necessary, by-pass valve E may be
  removed for
• cleaning. Renew 'O' rings F and G when
  re-assembling.

9803/4300
Issue 1
23
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available for immediate download. https//www.ebo
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