Case IH 485 Service Repair Workshop Manual
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SHOP MANUAL
CASE/INTERNATIONAL
MODELS
385—485—585—685—885
Engine serial number is stamped on right side of
engine crankcase on all models. Tractor model and
serial number are stamped on a plate attached to
right side of front axle support. Transmission serial
number is stamped on a plate attached to the right
rear side of rear main frame. Model and serial num-
ber plate for front drive axle is located on left rear
of axle housing.
INDEX (By Starling Paragraph)
BRAKES
At^ustment
Bleed
Master Cylinders
R&R and Overhaul
CLUTCH, ENGINE
Adjustment
Cylinders
R&R and Overhaul
CAB
Remove and Reinstall...
COOLING SYSTEM
Pan
Radiator
Water Pump
DIESEL FXTEL SYSTEM
Ether Starting Aid
Filters and Bleeding
Iiyection Pump
Nozzles
385
Diesel
121
122
124
123
97
101
69
68
71
67
60
61
64
485
Die8el
121
122
124
123
97
101
69
68
71
67
60
61
64
585
Diesel
121
122
124
123
97,98
99
101
145
69
68
71
67
60
61
64
685
Diesel
121
122
124
123
97,98
99
101
145
69
68
71
67
60
61
64
885
Diesel
121
122
124
123
97,98
99
101
145
69
68
71
67
60
61
64
INDEX (CONT.)
DIFFERENTIAL LOCK
R&R and Overhaul
ELECTRICAL SYSTEM
Alternator
Batteries
Charging System
Starting Motor
ENGINE
Assembly, R&R
Balancer
Cam Followers
Camshaft and Bearings ....
Connecting Rods and
Bearings
Crankshaft and Main
Bearings
Crankshaft Oil Seals
Cybnder Head
Flywheel
Iryection Timing
Nozzle Sleeves
Oil Pan
Oil Pump
Piston Pins
Piston Removal
Pistons, Sleeves and Rings .
Rocker Arms
Timing Gear Cover
Timing Gears
Valves and Seats
Valve Guides and Springs . .
FENDERS, FUEL TANK AND
PLATFORM
Remove and Reinstall
FINAL DRIVE
Assemblies, R&R
Planetary Carrier
Rear Axles
FRONT SYSTEM (Two-Wheel
Drive)
Axle Main Member
Front Support
Spindles
Tie Rods and Tbe-In
Wheel Bearings
385
Diesel
116
78
72
74
85,91
34
39
46
51
52
53,54
35
55
61
36
59
58
50
48
49
40
41
42
37
38
144
118
119
120
4,5
7
2,3
6
1
485
Diesel
116
78
72
74
85,91
34
39
46
51
52
53,54
35
55
61
36
59
58
50
48
49
40
41
42
37
38
144
118
119
120
6
1
585
Diesel
116
78
72
74
85,91
34
56
39
46
51
52
53,54
35
55
61
36
59
58
50
48
40
40
41
42
37
38
144
118
119
120
4,5
7
2,3
6
1
685
Diesel
116
78
72
74
85,91
34
56
39
46
51
52
53,54
35
55
61
36
59
58
50
48
49
40
41
42
37
38
144
118
119
120
4,5
7
2,3
6
1
885
Diesel
116
78
72
74
85,91
34
56
39
46
51
52
53,54
35
55
61
36
59
58
50
48
49
40
41
42
37
38
144
118
119
120
4,5
7
2,3
6
1
INDEX (CONT.)
FRONT-WHEEL DRIVE
Axle Assembly, R&R
Differential and Bevel
Drive Gears
Front Drive Shaft
Front Support
Swivel Housing and Axle
Shaft
Tie Rods and Tbe-In
Transfer Gearbox
Wheel Hub and Planetary ,
385
Diesel
8
12
16
11
19
17
10
HYDRAUUC SYSTEM
Auxiliary Control Valves... 143
Filter, Fluid and Pump 142
Uft Cylinder and Valve . . . 139
Raise Rate Valve 140
Rockshaft 141
R&R Lift Unit . 137
Ibst and Adjust 129
Trouble Shooting 128
Unloading and Flow
Control Valve 136
MAIN DRIVE BEVEL GEARS
AND DIFFERENTIAL
R&R and Overhaul 115
PARK BRAKE 117
POWER STEERING SYSTEM
Cylinder 30,31,32
Flow Divider 28
Flow and Pressure Tests... 22
Lubrication and Bleeding. . 21
Oil Cooler 33
Operation 20
Pump 26
Steering Hand Pump 29
POWER TAKE-OFF
Clutch, Shafts and Gears .. 127
Linkage Adjustment 125
Operating Pressure 126
TRANSMISSION, FORWARD-
REVERSE
Operation 105
Regulator (Control) Valve .. 107
R&R and Overhaul 109
Trouble Shooting 106
485
Diesel
8
12
16
11
19
17
10
143
142
139
140
141
137
129
128
136
585
Diesel
8
12
16
9
11
19
17,18
10
143
142
139
140
141
137,138
129
128
685
Diesel
8
12
16
9
11
19
17,18
10
143
142
139
140
141
137,138
129
128
885
Diesel
8
12
16
9
11
19
17,18
10
143
142
139
140
141
137,138
129
128
136 136 136
115
117
30,31,32
28
22
21
33
20
26
29
127
125
126
105
107
109
106
115
117
30,31,32
28
22
21
33
20
26
29
127
125
126
105
107
109
106
115
117
30,31,32
28
22
21
33
20
26
29
127
125
126
105
107
109
106
115
117
30,31,32
28
22
21
33
20
26
29
127
125
126
• • •
• • •
• • •
INDEX (CONT.)
385
Diesel
TRANSMISSION, TWO SPEED
POWERSHIFT
Operation 102
Regulator (Control) Valve . . 103
R&R and Overhaul 104
TRANSMISSION, RANGE
R&R and Overhaul 111,112,113
Transfer Lube Pump 114
TRANSMISSION, SYNCHRO-
MESH (SPEED)
R&R and Overhaul
485
Diesel
102
103
104
111,112,113
114
585
Diesel
102
103
104
111,113
114
685
Diesel
102
103
104
111,113
114
885
Diesel
102
103
104
111,113
114
110
no no no no
DUAL DIMENSIONS
This service manuai provides specifications in both the U.S. Customary and Metric (Si) system of measurements.
The first specification is given in the measuring system used during manufacture, whiie the second specification
(given in parenthesis) is the converted measurement. (For instance, a specification of **0.011 inch (0.279 mm)" would
indicate that the equipment was manufactured using the U.S. system of measurement and the metric equivalent
of 0.011 inch is 0.279 mm.
CONDENSED SERVICE DATA
385 485 585
Diesel Diesel Diesel
GENERAL
Engine Make Case/International
Engine Model D-155 D-179 D-206
Number of Cylinders 3 3 4
Bore 3.875 in. 3.875 in. 3.875 in.
(98.4 mm) (98.4 mm) (98.4 mm)
Stroke 4.37 in. 5.06 in. 4.37 in.
(111.1 mm) (128.5 mm) (111.1 mm)
Displacement 155 cu. in. 179 cu. in. 206 cu. in.
(2.54 L) (2.93 L) (3.38 L)
Main Bearings,
Number of 4 4 5
Cylinder Sleeves Wet Wet Wet
Forward Speeds,
Number of 8(1) 8(1) 8(1)
Alternator/Starter Make . . . Lucas and Bosch
Battery Ground Negative
(1) Sixteen forward speeds, if equipped with Two-Speed Power Shift.
685
Diesel
D-239
4
3.875 in.
(98.4 mm)
5.06 in.
(128.5 mm)
239 cu. in.
(3.92 L)
5
Wet
885
Diesel
D-268
4
3.937 in.
(100.0 mm)
5.51 in.
(140.0 mm)
268 cu. in.
(4.39 L)
5
8(1) 8(1)
CONDENSED SERVICE DATA (CONT.)
TUNE-UP
Compression Pressure
Firinc Order
385
Diesel
1-3-2
485
Diesel
1-3-2
585
Diesel
315-340 psi (2)
(2172-2344 kPa)
685
Diesel
1-3-4-2
885
Diesel
Valve Tkppet Gap (Hot),
Intake and Exhaust
Valve Face Angle
Valve Seat Angle
Ir\jection Pump Make
Ir\jection Pump Timing ....
Engine Low Idle — Rpm . .
Engine High Idle — Rpm
(No Load) 2340 2480
Engine Full Load — Rpm .. 2200 2180
(2) Approximate psi (kPa), at sea level, at cranking speed.
0.012 in.
(0.304 mm)
45°
44°
_ Robert Bosch _
See Paragraph 61.
725-750
2590
2300
2705
2300
2650
2400
SIZES-CLEARANCES-CAPACmES
Crankshaft Main Journal
Diameter
Crankpin Diameter
Camshaft Journal Diameter
Piston Pin Diameter
Valve Stem Diameter,
Intake
Exhaust
Main Bearing Diametral
Clearance .
Rod Bearing Diametral
Clearance
Piston Skirt Diametral
Clearance
Crankshaft End Play
Camshaft Bearing
Diametral Clearance ....
Camshaft End Play
Cooling System Capacity . .
Crankcase Oil (With Filter)
. 3.0 U.S. gal.
(11.4 L)
. 8 U.S. qts.
(7.5 L)
. 3.1484-3.1492 in. _
(79.97-79.99 mm)
. 2.5185-2.5193 in. _
(63.97-63.99 mm)
. 2.2823-2.2835 in. _
(57.97-58.00 mm)
_ 1.4172-1.4174 in. .
(35.997-36.002 mm)
. 0.3920-0.3924 in. .
(9.957-9.967 mm)
_ 0.3912-0.3915 in. _
(9.936-9.945 mm)
. 0.0028-0.0055 in. .
(0.071-0.140 mm)
_0.002-0.004 in. _
(0.051-0.102 mm)
0.0035-0.0050 in.
(0.09-0.13 mm)
_ 0.006-0.009 in. _
(0.152-0.229 mm)
0.0009-0.0033 in.
(0.023-0.084 mm)
_ 0.004-0.018 in._
(0.10-0.45 mm)
. 3.6 U.S. gal.
(13.7L)
. 10 U.S. qts.
(9.5 L)
6
CONDENSED SERVICE DATA (CONT.)
385 485 585 685 885
Diesel Diesel Diesel Diesel Diesel
SIZES-CLEARANCES-CAPACITIES (CONT.)
Transmission, Differential
and Hydraulics, Capacity 36 U.S. qts. (3)
(34 L)
Oil Type Hy-Tran Plus
Front Drive Axle Capacity . 4.75 U.S. qts,
(4.5 L)
Oil Type SAE 90 EP
Front Drive Axle Hub
(Each Side) 0.8 U.S. qt.
(0.75 L)
Oil Type SAE 90 EP
(3) If equipped with front drive axle, add 2.6 U.S. qts. (2.5 L).
Paragraphs 1-2
CASE/INTERNATIONAL
FRONT AXLE (TWO-WHEEL DRIVE)
FRONT WHEEL BEARING
All Models
1. Refer to Figs. 1 and 2 for typical wheel hub and
bearing assemblies.
The tapered inner and outer roller bearings are not
interchangeable. Clean and inspect bearing cups (3
and 5) and cones (2 and 6) and renew as necessary.
NOTE: On adjustable axle hubs, if wear ring (12)
is excessiveiy worn, renew wear ring.
Install inner seal (1) on spindle and coat lips of seal
with grease. Pack bearings and fill hub cavity with
No. 2 lithium gi^ease. Install inner bearing cone (2).
Install hub assembly (4), outer bearing cone (6),
washer (7) and nut (9). Adyust wheel bearing preload
as follows: Tighten nut to a torque of 70 ft .-lbs. (95
N*m) while rotating the hub. Then, loosen nut and
retorque to 50 ft.-lbs. (68 N-m) on Models 385, 485
and 585 with standard axles or 25 ft.-lbs. (34 N*m)
on Models 385, 485 and 585 equipped with heavy
duty axles and all Model 685 and 885 tractors. Then,
11
13
Fig. 1—Exploded view of front wheel hub and bearings
used on all two-wheel drive models equipped with
adjustable front axles.
1. Oil seal
2. Bearing cone
(inner)
3. Bearing cup 7. Washer
(inner) 8. Cotter pin
4. Hub 9. Castellated nut
5. Bearing cup 10. Cap
(outer) 11. Lug bolt
Bearing cone 12. Wear ring
loosen nut 1/4 turn to align slot in nut with hole in
spindle and install cotter pin (8). Install lithium grease
in end of hub and in cap (10) and install cap.
SPINDLES
All Models With Adjustable Axles
2. R&R SPINDLES. Ib remove either spindle (9—
Figs. 3, 4 or 5), block rear wheels securely and apply
park brake. Raise front of tractor and install jack
stand under axle main member (13). Unbolt and re-
move front wheel and hub. Disconnect tie rod from
steering arm (2 or 6). Remove bolt (1) and nut (3) and
lift off steering arm. Remove Woodruff key (11) and
lower spindle (9) with thrust bearing (8) and felt ring
(10), downward out of axle extension. Remove thrust
bearing and felt ring from spindle.
With spindle removed, check spindle bushings (7)
in axle extension for excessive wear or other dam-
age and renew as required. Install new bushings (7)
so that lubrication grooves are toward the grease fit-
ting. Drive bushings in from top and bottom of ex-
tension until each bushing is 0.060 inch (1.5 mm) be-
low the surface.
When reassembling, install new felt ring (10) and
thrust bearing (8) as necessary.
NOTE: Thrust bearing (8) is marked TOP for cor-
rect instaiiation.
Install spindle assembly. Woodruff key and steer-
ing arm. Tighten steering arm clamping bolt to a
(outer) 13. Lug nut
Fig, 2—Exploded view of front wheel hub and bearings
used on two-wheel drive models equipped with
nonadjustable (cast) front axle. Refer to Fig. 1 for legend.
SERVICE MANUAL
Paragraph 3
torque of 80-90 ft.-lbs. (108-122 N-m). Install tie rod
and tighten nut to a torque of 50 ft.-lbs. (68 N*m).
Check oil seal (1—Fig. 1) and renew as necessary
as outlined in paragraph 1. Install hub and ac^ust
bearings as in paragraph 1.
All Models With Nonadjustable Cast Axie
3. R&R SPINDLES. To remove either spindle (11—
Fig. 6), block rear wheels securely and apply park
brake. Raise front of tractor and install jack stand un-
der axle main member (16). Unbolt and remove front
wheel and hub.
Remove lubrication fitting from steering arm (5 or
10). Remove three bolts (22) and nuts, then move
steering arm, steering cylinder (left side) and tie rod
Fig. 3^Exploded view of straight adjustable front axle
used on some tractors.
1. Bolt
2. Steering arm 12. Shoulder bolt
(R.H.) 13.
3. Nut
4. Axle extension
(R.H.)
5. Axle extension
{L.H.)
Steering arm
(L.H.)
Bushings
Thrust bearing 20.
Spindle
6.
7.
8.
9.
10. Felt ring
11. Woodruff key
Axle main
member
Bushings
15. Pivot pin
16. Cap screw (2)
17. Steel bushings
18. Bushings
Steering arm
(center)
Steering cylinder
retaining bar
Lockplate
14
19
Fig. 4—Exploded view of heavy duty straight adjustable
front axle used on some tractors. Refer to Fig. 3 for
legend.
21
22. Cap screw (2)
22-*i
Fig. 5—Exploded view of swept back adjustable front axle
used on some tractors. Refer to Fig. 1 for legend except
for tie rod assembly (23).
9
Paragraphs 4-5
CASE/iNTERNATiONAL
rearward from axle. Remove cap screws (1), caps (2)
and gaskets (3). Remove nut and lockwasher from
lock pin (15). Drive lock pin forward out of axle main
member Using a hammer and punch, drive kingpin
(12) out of axle and spindle. Remove spindle, thrust
bearing (14) and shim (13) if so equipped.
Inspect kingpin bushings (4) and renew if neces-
sary. Bushings should be installed until inner ends
of bushings are 0.016-0.031 inch (0.4-0.8 mm) below
the inside surfaces of spindle bores. Lubrication
grooves in bushings must align with lubrication
fittings.
Install a new thrust bearing (14), with TOP mark
up, on bottom inside edge of spindle. Install spindle
over end of axle main member with thrust bearing
under axle. Use a jack to hold spindle and bearing
tight against bottom of axle. Using a feeler gage,
measure gap between upper edge of axle and the
spindle. If gap is more than 0.005 inch (0.127 mm),
install shims to reduce gap to less than 0.005 inch
(0.127 mm). Shims are available in thicknesses of
0.005 and 0.010 inch (0.127 and 0.254 mm).
Inspect kingpin (12) and renew as necessary. Install
kingpin with flat nearest to the top and in alignment
with hole for the lock pin (15). Install lock pin, lock-
washer and nut. Tighten nut securely. Install steer-
ing arm and tighten bolts (22) and nuts to a torque
of 160-180 ft.-lbs. (217-244 N-m). Install lubrication
fitting in steering arm.
Check oil seal (1—Fig. 2) and install new seal, if
needed, then install hub and adjust bearings as out-
lined in paragraph 1.
AXLE MAiN MEMBER AND PiVOT PiN
All Modeis With Adjustabie Axies
4. REMOVE AND REINSTALL. 1b remove axle
main member (13—Figs. 3, 4 and 5), first block rear
wheels securely and apply park brake. If so equipped,
remove front weights and weight bracket. Unbolt and
remove front cover. Support tractor with stands un-
der side rails or oil pan, and remove front wheels.
Disconnect tie rod ends from left and right steering
arms (2 and 6). Unbolt and remove axle extensions
(4 and 5) with spindle assemblies. Identify and dis-
connect steering cylinder hoses at cylinder. Cap and
plug all openings. Remove the cylinder anchor clevis
pin. Straighten corners of lock plate (21) and remove
cap screws (22), lock plate (21) and cylinder retain-
ing bar (20). Hold cylinder upward and slide cylin-
der clevis from anchor on axle. Remove steering cyl-
inder. Remove center steering arm (19) and tie rods.
Place a floor jack under axle main member (13). Re-
move cap screws (16) and thread a slide hammer
puller into front end of pivot pin (15). Remove pivot
pin, then lower axle main member and remove from
under tractor.
Inspect axle pivot bushings (14) and renew if neces-
sary, aligning lubrication holes with lubrication fit-
tings. Inspect cylinder pivot bushings (18) and steer-
ing arm pivot bushings (17) and renew as necessary.
Reinstall by reversing removal procedure, keeping
the following points in mind: Tighten cap screws (16)
and (22) to a torque of 80-90 ft.-lbs. (110-124 N-m).
Bend corners of lock plate (21) against flat of bolt
head (22). Tighten nuts on shoulder bolts (12) to a
torque of 246-272 ft.-lbs. (334-369 N-m). Tighten tie
rod end slotted nuts to a torque of 50 ft.-lbs. (68 N-m).
Aii Modeis With Nonadjustabie Cast Axle
5. REMOVE AND REINSTALL. Ib remove axle
main member (16—Fig. 6), block rear wheels secure-
ly and apply park brake. If so equipped, remove front
weights and weight bracket. Unbolt and remove front
cover. Raise front of tractor and support with stands
under side rails or oil pan. Remove front wheels.
Identify and disconnect steering cylinder hoses at cyl-
inder. Cap or plug all openings immediately to pre-
Fig. 6-—Exploded view of heavy duty (cast) nonadjustable
front axle used on some tractors.
1. Cap screw
2. Cap
Gasket 11. Spindle
3.
4. Bushing
5. Steering arm
(R.H.)
6. Dust seal
7. Tie rod end
(R.H.)
8. Tie rod tube
9. Tie rod end
(L.H.)
Steering arm
(L.H.)
10
12. King pin
13. Shim
14. Thrust bearing
15. King pin lock pin
16. Axle main member
17. Bushings
18. Spacer
19. Pivot pin
20. Bolt
21. Cylinder pin
22. Bolts
10
SERVICE MANUAL
Paragraphs 6-7
vent dirt from entering system. Place a floor jack un-
der axle main member to support axle assembly.
Remove clamp bolt (20) and nut, then thread a slide
hammer puller into end of pivot pin (19). Remove piv-
ot pin, then lower axle main member assembly and
remove from under tractor.
Remove tie rod and steering cylinder Remove spin-
dles if desired as outlined in paragraph 3. Inspect
bushings (17) and renew if necessary. Install new
bushings (17) and spacer (18) so that bushings are
slightly below flush with outer edges of bore in axle
main member
Reinstall by reversing removal procedure keeping
the following points in mind: When installing pivot
pin (19), flat for clamping bolts (20) must fact down-
ward. Tighten clamping bolt and nut to a torque of
80-90 ft.-lbs. (108-122 N-m). Tighten tie rod end slot-
ted nuts to a torque of 50 ft.-lbs. (68 N-m). Lubricate
pivot bushings with No. 2 lithium grease.
TiE RODS AND TOE-iN
to lengthen or shorten tie rod as required. Adjust
both tie rods equally. Reassemble tie rods and
recheck toe-in. Readjust if necessary.
Front wheel toe-in on all models equipped with the
nonadjustable cast axle should be 0-5/32 inch (0-4
mm). To adjust toe-in, refer to Fig. 6 and loosen jam
nuts at each end of tube (8). One nut is left hand
thread and the other is right hand thread. Rotate
tube as required to lengthen or shorten tie rod as-
sembly. Tighten jam nuts and recheck toe-in. Read-
just if necessary.
FRONT SUPPORT
Aii Models (Two-Wheei Drive)
7. REMOVE AND REINSTALL. Tb remove the
front support (3—Fig. 8 or 9), first block rear wheels
securely and apply park brake. Remove hood, grille
and side panels. Drain cooling system. Remove radi-
All Modeis (Two-Wheei Drive)
6. Two types of tie rods used with adjustable ax-
les are shown in Fig. 7. Two tie rods are used on each
tractor. Refer to Fig. 6 for tie rod used on models
equipped with the nonadjustable cast axle. Removal
and disassembly of tie rods on all models is obvious
after examination of unit and reference to Figs. 6 and
7.
Front wheel toe-in on all models equipped with ad-
justable axles should be 3/16-5/16 inch (5-8 mm). Ib
adyust toe-in, remove clamp bolt (2—Fig. 7) or set
screw (2A) and loosen jam nut (4). Rotate tube (3)
Fig. 7—View showing typicai tie rod assembiies used on
models equipped with adjustabie axies.
1. Tie rod end 3. Tube
(outer) 4. Jam nut
2. Clamp & bolt 4A
2A. Collar & set
screw
Lockwasher
5. Tie rod end
(inner)
Fig. 8—View of cast front support used on some two-
wheei drive models.
1. Foam seal 4. Lower air baffle
2. Front cover 5. Spring pin dowels
3. Front support 6. Cap screws
11
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This is the Case IH 485 Service Repair Workshop Manual, a comprehensive guide containing full service and repair instructions utilized by mechanics worldwide.
It covers all major topics, providing step-by-step instructions, diagrams, illustrations, wiring schematics, and specifications for repairing and troubleshooting the Case IH 485.
Designed for both owners with basic mechanical skills and independent auto service professionals, this manual offers the same specifications and procedures available to authorized dealer service departments. Even car owners not intending to work on their vehicles will benefit from owning and referencing this manual, enabling them to be better informed and more knowledgeable when discussing repairs with automotive technicians.
The manual, written by the manufacturers, is designed to help with any necessary repairs and is suitable for both professional mechanics and DIY enthusiasts.
It is available in .PDF format, allowing viewing on PCs, Macs, and various devices including many phones and e-readers like the Amazon Kindle. The option to print individual pages as needed prevents the original from becoming obscured and unreadable due to oil stains.
Compatibility: All Versions of Windows and Mac
Printable: Yes
Language: English
Requirements: Adobe Reader
The manual includes pictures and easy-to-follow directions on required tools and repair procedures, potentially saving hundreds or thousands of dollars in repair bills by enabling simple repairs to be done independently.
It covers a wide range of topics including lubrication and maintenance, suspension, differential and driveline, brakes, cooling, audio/video, engine systems, and much more.
All pages are printable, making it convenient to take the necessary information into the garage or workshop, ultimately saving money by facilitating DIY repairs.
With very easy-to-follow, step-by-step instructions, this manual is suitable for individuals at any skill level.
Case IH 485
