New Holland FORD VERSATILE User manual

VERSATILE
Service Manual
Designation 6
Tractor
Issue 1-91
(Replaces A!! Previous Issues)
40075691
FORD'
I\EWHOL~
I
Reprinted I

568 @ 1991FORDNEWHOLLAND,INC.
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CONTENTS
SECTION 1-SPECIFICATIONS AND DATA .............................. 1-1
SECTION2 - ENGINESYSTEMS ....................................... 2-1
SECTION3 - 12-SPEEDMECHANICAL TRANSMISSION .................... 3-1
SECTION4 - 15-SPEEDMECHANICAL TRANSMISSION .................... 4-1
SECTION5 - DRIVETRAIN ............................................ 5-1
SECTION6 - POWERSHIFTTRANSMISSION ............................. 6-1
SECTION7 - HYDRAULICS ............................................ 7-1
SECTION8 - ELECTRICALSYSTEMS ................................... 8-1
SECTION9- ENVIRONMENTALSYSTEMS ............................... 9-1
SECTION10- STRUCTURES ......................................... 10-1
SECTION11 - THREE-POINTHITCH ................................... 11-1
SECTION12 - BRAKES .............................................. 12-1
INDEX .......................................................... . 12-13
0-1
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Safety
This section contains general safety prec-
autions which should be thoroughly studied
and practised by all service personnel. Refer
to your tractor Operator's Manual for more
detailed safety information.
GENERAL SAFETY
1. Mount a fire extinguisher near the service
area. Maintain it as recommended by the
manufacturer.
2. Never operate the tractor in an enclosed
building. If it is absolutely necessary to do
so, be sure the building is well ventilated
and ducting is used to direct exhaust
fumes outside.
3. Always keep sleeves, jackets or other
loose clothing relatively tight and belted.
Loose clothing might catch in moving trac-
tor parts.
4. Never jump from the cab. Always use
steps and handholds when mounting and
dismounting tractor.
5. Park the tractor on a clear, level area be-
fore beginning any maintenance proce-
dure. Shut down the engine and remove
key; apply parkbrake; chock the front and
back of at least two wheels. Ensure all
operating controls are in neutral. Always
disengage the PTO clutch and three-point
hitch. Engage articulation lock.
6. Always lower implements to the ground
when leaving equipment.
7. Always operate tractor controls from the
operator's seat.
8. Use articulation lock during tractor servic-
ing. See Section 10, STRUCTURES.
TRANSPORT SAFETY
1. Use a trailer with a carrying capacity of at
least 18tonnes (20 tons) to haul the tractor.
0-2
2. Securely chain the tractor to the trailer,
block the wheels and engage the park-
brake to prevent tractor movement. En-
gage articulation lock.
JACKING SAFETY
1. Select a jack strong enough to carry the
load. The minimum required jack capacity
is 4.5 tonnes (5 tons).
2. Stabilize the tractor by putting trans-
mission into gear, engaging the parkbrake
and chocking wheels securely. Engage
articulation lock.
3. To prevent jackknifing, use two hoists or
two rear jacks to lift the rear frame.
4. Secure the jack under the axle tube, frame
or drawbar where it is strong enough to
keep the jack from tipping, sinking or
shifting. Any additional blocking should
be under the jack.
5. Jack up the front and/or rear frame just
enough to install steel safety stands under
the axle tubes or frame.
6. Check the jack position after it has started
to lift. Lower the jack immediately if it
starts to lean. Reset the jack; block the
tractor more securely and lift again.
7. Keep the tractor stable by not raising it so
high that it will slide off the jack.
8. Put support stands under the tractor.
Lower the jack and let the tractor rest on
the stands. This provides solid support for
the tractor when the jack is removed.
HOIST SAFETY
1. Use a chain hoist and frame to lift the
tractor. The minimum hoist capacity re-
quired is 9 tonnes (10 tons); 7 257 kg (8
tons) for the A-frame or overhead support
and 2 721 kg (3 tons) for the support stands.
2. Protect yourself from injury when tractor is
being raised by observing the following
precautions:
a. Do not stand on the tractor when it is
being lifted.
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b. Keep hands away from pinch points
where the chain links tighten or the
chain is against the tractor frame.
c. Do not let the tractor swing and strike
personnel or the frame as it leaves the
ground.
d. Keep support stands nearby and place
under the tractor when the necessary
height is reached.
e. Do not go under a tractor supported by
a chain hoist. Put support stands un-
der the tractor before working under it.
f. Engage articulation lock.
g. A cab support is available where bet-
ter access is required.
3. Extreme care must be exercised when
hoisting, lowering or moving any trans-
mission component.
MAINTENANCE SAFETY
1. Shut down engine before repairing tractor.
2. Be alert when approaching the tractor
while it is running. Be especially careful
around the PTO, articulation joint and
three-point hitch.
3. Engage articulation lock during overhaul
operations.
4. Never oil, grease or adjust the tractor
while it is moving. Never run engine while
tractor is being adjusted, cleaned or re-
paired.
5. Before repainng any hydraulic system
component, shut down engine and move
all implement controls forward and back-
ward several times to relieve pressure.
Disconnect any components connected to
the hoses.
6. Wear a face shield or goggles to protect
your eyes and heavy gloves to protect your
hands when searching for hydraulic leaks
or charging the air conditioning system.
7. Escaping hydraulic oil under pressure can
penetrate the skin causing severe per-
sonal injury.
0-3
Use a piece of cardboard or wood as a
backstop when searching for leaks. If in-
jured by escaping hydraulic oil, get imme-
diate medical attention.
8. Do not smoke; avoid open flames when
filling batteries.
9. Shut down engine and remove key before
disconnecting or servicing PTO drivelines.
10. Do not remove radiator cap while the en-
gine is hot. Let engine cool below 74° C
(165° F) before removing cap.
11. Stop engine before making any linkage
adjustments.
12. Welding fuel tanks is dangerous and not
recommended.
13. Repair adhesive is flammable. Keep ad-
hesive and its vapors from heat, sparks
and flame.
14. During adhesive use, and until vapor is
gone, avoid using spark producing elec-
trical equipment. Keep container closed
when not in use.
15. Use adhesive only in a well ventilated
area.
FUEL AND FLUID SAFETY
1. Do not smoke; avoid open flame when:
a. Filling the fuel tanks
b. Filling batteries
c. Working near a disassembled air con-
ditioning system. Refrigerant vapor
and flame combined produce lethal
phosgene gas.
2. Add coolant to the radiator only when the
engine is OFF. Turn the radiator cap
slightly to relieve pressure before com-
pletely removing it.
3. Do not use an open pail or can for trans-
porting fuel. Use only an approved con-
tainer manufactured for that purpose.
4. If clothes are splashed with fuel, change
immediately. Fuel soaked clothes are an
extreme fire hazard.
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5. Dispose of all fuel soaked rags. Do not
leave them lying around a work area
0-4
where they may be exposed to flame,
spark or cigarette smoking.
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SECTION 1
SPECIFICATIONS AND DATA
1 Introduction
This section contains general information
about specifications, capacities, fuel, fluids
and lubricants for the tractor.
2
2.1
Specifications
ACCESSORIES
Cold Start ............. Manual control, ether type
756
Engine Block Heater .............................. 750 W
recirculating type
836,856,876
Engine Block Heater ............................ 1500W
immersion type
936,956,976
Engine Block Heater ............................ 1500W
immersion type
Radio ......................... AM/FM stereo cassette
2.2
with two 100x 152 mm (4 x 6 in.)
coaxial speakers
roof mounted antenna
AIR CLEANER
Type .................... Dual element, dry type with
safety element, exhaust aspirated
precleaner, restriction indicator
mounted on air cleaner
2.3 AXLES
Outboard
Differential Ratio ................................... 3.53:1
Lubrication ..................... SAE 80W90, 85W140
Oil Capacity (each) ............... 30 L (30.9 qt US) .
Planetary Ratio ........................................ 7.8:1
Total Ratio ........................................... 27.53:1
2.4 BRAKES
Type ............ twin piston caliper, hydraulically
activated by foot pedal on single disc
432 mm (17 in.) for mechanical transmission
and 508 mm (20 in.) for powershift
transmission
Meets or Exceeds ... ASAE S365T (SAE J1041)
Parkbrake ................. Integral with road brake
2.5 CAB
mechanically activated by
overcenter lever
Type .................. lndependant modular design
Rollover Protective Structure (ROPS)
(ROPS ASAE S383)
Glass ................ Tinted safety, 4.58 m2 (49.3 ft2)
Emergency Exits ................ Two, Rear window
and right side window
Wipers ........................ Two wipers, two speed
Seat ......................... Cloth covered, two stage
air suspension
Seat Belts ... Retractable, SAE J141, SAE J385
Type .... Spiral bevel differenti&I with outboard 2.6
planetary, floating ring gear final drive CAPACITIES
Differential Ratio ................................... 4.88:1 Axles, Differentials (each)
Outboard ........................... 38.8 L (41 qt US)
Lubrication ..................... SAE 80W90, 85W140 Inboard .............................. 30 L (30.9 qt US)
Oil Capacity (each) ................ 38.8L (41 qt US)
Planetary Ratio .................................... 5.285:1
Cooling System
756 .................................... 37.5 L (40 qt US)
836, 856, 876 ...................... 52.1 L (55 qt US)
Total Ratio ........................................... 27.45:1 936, 956, 976 .................... 60.3 L (63.7 qt US)
Inboard Engine Oil
756 ....................................... 18.9 L (5 USG)
Type ................... Row Crop, adjustable wheel 836, 856, 876 ........................... 26 L (7 USG)
mounting, inboard planetaries 936, 956, 976 ......................... 37 L (9.8 US G)
1-1
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Fuel Tanks
756 .................................... 933 L (246 US G)
836, 856, 876 ...................... 933 L (246 US G)
936, 956, 976 .................... 1085L (286 US G)
Hydraulic System
756 ..................................... 58 L (15.3 USG)
836, 856, 876 ....................... 58 L (15.3 USG)
936, 956, 976 ....................... 55 L (14.5 US G)
Transmissions
12 Sp Mech ..................... 20.3 L (21.5 qt US)
15 Sp Mech ....................... 23.6 L (25 qt US)
1050 P/S ............................ 28.5 L (30 qt US)
1402 P/S ............................ 47.3 L (50 qt US)
2.7 COOLING SYSTEM
Capacity
756 .................................... 37.5 L (40 qt US)
836, 856, 876 ...................... 52.1 L (55 qt US)
936, 956, 976 .................... 60.3 L (63.7 qt US)
Radiator ............ vertical flow, 6 row core with
3.5 fins per cm (9 fins per in.)
Radiator Area
756.................................. 5 540 cm2 (859 in.2)
836, 856, 876................... 5 540 cm2 (859 in.2)
936, 956, 976 ................. 7 825 cm2 (1213 in.2)
Fan
756 .................. 660 mm (26 in.) dia, 8 blade
836, 856, 876 .... 710 mm (28 in.) dia, 8 blade
936, 956, 976 .... 813 mm (32 in.) dia, 8 blade
2.9 DRAWBAR
Type ................ Swinging bar of 44.5 x 127 mm
(1.75 x 5 in.) steel. Replaceable
hardened bushings
Height ........................ 440 mm (17.3 in.) to top
of main member
2.10 ELECTRICAL SYSTEM
Type ............................. 12V, negative ground
Alternator ........... 12V, 90 A, negative ground
Batteries
756 ............. Two, 625 cold canking amps at
-18° C (0° F)
836, 856, 876 ............ Four, 625 cold canking
amps at-18° C (0° F)
936, 956, 976 ............ Four, 625 cold canking
amps at-18° C (0° F)
Lights
756 ........... Two headlamps, four worklights
two red taillights, two amber turn
signal lamps. Four additional
worklights, optional
836, 856, 876 ............. Two headlamps, eight
workights, two red taillights
two amber turn signal lamps
936, 956, 976 ............. Two headlamps, eight
worklights, two red taillights
two amber turn signal lamps
Seven Pin Connector ..... Rear frame mounted
Pressure Cap ............................. 48 kPa (7 psi) 2.11 ENGINES
756
2.8 DIMENSIONS Full Load Governed Speed ............ 2 100 r/min
Cab Height ......................... ? 195 mm (125 in.) Idle Speed ..................................... 1000 r/min
Overall Height ................... 3 530 mm (139 in.) Displacement .................... 8.3 L (506 cubic in.)
to top of exhaust stack Bore ..................................... 114 mm (4.49 in.)
Overall Length ................... 6 600 mm (257 in.) Stroke .................................. 135 mm (5.32 in.)
Cab Width ............................ 1 050 mm (41 in.) Max Power ............................ 142 kW (190 hp)
Wheelbase ......................... 3 300 mm (130 in.) at 2 100 r/min
Nominal Turning Radius
42° Articulation ............. .4 333 mm (170.6 in.)
Max Torque ....................... 838 N.m (618 lbf ft)
at 1 500 r/min
to centerline of tractor Torque Rise ............................................. 30%
1-2
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Weight (wet) .......................... 636 kg (1 402 lb) 956
Max. Power ........................... 250 kW (335 hp)
836, 856, 876 at 2 100 r/min
COMMON SPECIFICATIONS
Full Load Governed Speed ............ 2 100 r/min
Idle Speed ..................................... 1 000 r/min
Displacement ..................... 10 L (610 cubic in.)
Bore ..................................... 125 mm (4.92 in.)
Stroke .................................. 136 mm (5.35 in.)
Weight (wet) .......................... 922 kg (2 030 lb)
836
Max. Power ........................... 156 kW (210 hp)
at 2 100 r/min
Max. Torque ...................... 926 N.m (683 lbf ft)
at 1 300 r/min
856
Max. Power ........................... 178 kW (240 hp)
at 2 100 r/min
Max. Torque ................... 1 057 N.m (780 lbf ft)
at 1 300 r/min
876
Max. Power ........................... 208 kW (280 hp)
at 2 100 r/min
Max. Torque ................... 1 213 N.m (895 lbf ft)
at 1 300 r/min
936,956,976
COMMON SPECIFICATIONS
Full Load Governed Speed ............ 2 100 r/min
Idle Speed ..................................... 1 000 r/min
Displacement ..................... 14 L (855 cubic in.)
Bore ....................................... 140 mm (5.5 in.)
Stroke ....................................... 152 mm (6 in.)
Weight (wet) ....................... 1 350 kg (2 970 lb)
936
Max. Power ........................... 230 kW (310 hp)
at 2 100 r/min
Max. Torque ................ 1432 N.m (1 056 lbf ft)
at 1400 r/min
1-3
Max. Torque 1 543 N.m (1 138 lbf ft)
at 1400 r/min
976
Max. Power ........................... 268 kW (360 hp)
at 2 100 r/min
Max. Torque ................ 1 587 N.m (1 170 lbf ft)
at 1400 r/min
2.12 FRAME
Articulation ................... 42° each side, 84° total
Oscillation ................................ ±15° both ways
Articulation Lock ............................... Pin type
2.13 HYDRAULIC SYSTEM
756
Capacity ............................... 58 L (61.2 qt US)
Type ............ Open centre steering circuit with
closed centre load sensing
implement circuit
Filtration ................. Single mesh suction filter
and two separate 10 micron return filters
Implement Pump .....45.4 cm3/rev (2.77 in.3/rev
displacement, 1.59 Lisee (25.2 gpm US) flow
at 2 100 r/min, high pressure standby
16.5/17.4 MPa (2 400/2 500 psi)
Implement Valve .... 2 spools, 4 way with float
and 15.51 MPa (2 250 psi) detents, separate
flow control for each spool
Hydraulic Couplers ........... Lever type accepts
standard ASAE male tips
Steering Pump .................... .46.7 cm3 (2.85 in.3)
displacement 1.63 Lisee (25.9 gpm US)
flow gear pump
Steering Valve ............ 738 cm3/rev (45 in.3/rev)
4.5 turns lock to lock
Relief Valve ........... Pilot operated, 15.85 MPa
(2 300 psi)
Lubricant ........................................ HyGear 23
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836,856,876
Capacity ............................... 58 L (61.2 qt US)
Type ............ Open centre steering circuit with
closed centre load sensing
implement circuit
Filtration ............. Single mesh suction screen
and two separate 10micron return filters
Implement Pump......45.4 cm
3
/rev (2.77 in.
3
/rev
displacement, 1.59 Lisee (25.2 gpm US) flow
at 2 100 r/min, high pressure standby
16.5/17.4 MPa (2 400/2 500 psi)
Implement Valve .... 4 spools, 4 way with float
and 15.51 MPa (2 250 psi) detents, separate
flow control for each spool
Hydraulic Couplers ........... Lever type accepts
standard ASAE male tips
Steering Pump..................... 46.7 cm3 (2.85 in.3)
displacement 1.63 Lisee (25.9 gpm US)
flow gear pump
Steering Valve ............ 738 cm3/rev (45 in.3/rev)
4.5 turns lock to lock
Relief Valve ........... Pilot operated, 15.85 MPa
(2 300 psi)
Lubricant ........................................ HyGear 23
936,956,976
Capacity .................................. 55 L (58 qt US)
Type ............ Open centre steering circuit with
closed centre load sensing
implement circuit
Filtration ................. Single mesh suction filter
and separate 10 micron return filters
Implement Pump......45.4 cm3/rev (2.77 in.3frev
displacement, 1.55 Lisee (24.5 gpm US) flow
at 2 100 r/min, high pressure standby
16.5/17.4 MPa (2 400/2 500 psi)
Implement Valve .... 4 spools, 4 way with float
and 15.51 MPa (2 250 psi) detents, separate
flow control for each spool
Hydraulic Couplers ........... Lever type accepts
standard ASAE male tips
Steering Pump.................... .42.7 cm3 (2.61 in.3)
1-4
displacement 1.65 Lisee (26.1 gpm US)
flow gear pump
Steering Valve ............983 cm3/rev (60 in.3/rev)
4.5 turns lock to lock
Relief Valve ........... Pilot operated, 15.85 MPa
(2 300 psi)
Lubricant ........................................ HyGear 23
2.14 STEERING
Type ............................................. Open center
Flow ................................. 98 Lim (26 gpm US)
Relief Pressure .............. 15.86 MPa (2 300 psi)
Steering Cylinders
756 .................. Double acting, 76 x 420 mm
(3.0
X
16.5 in.)
836, 856, 876 .... Double acting, 76 x 420 mm
(3.0
X
16.5 in.)
936, 956, 976 .... Double acting, 89 x 420 mm
(3.5
X
22.1 in.)
2.15 Three-Point Hitch
Category ............................................. IVN/IIIW
Lift Capacity .... Estimated 9 840 kg (21 700 lb)
610 mm (24 in.) behind hitch points
Estimated 9 620 kg (21 200 lb) at hitch points
Sway Blocks ..................................... Standard
Hitch Type .............. Claw hitch on lower links
Control ........... Electronic position control with
automatic and manual modes
2.16 TIRES
Refer to Tables 1-3 and 1-4.
2.17 TRANSMISSIONS
12-Speed Mechanical Transmission
Type .............. 12speed forward and 4 reverse
constant mesh with sliding shift collars
Lubrication ............. lndependant system with
pump, filter, cooler, low pressure sensor
Capacity ............................. 20.3 L (21.5 qt US)
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