1 MAKING EFFECTIVE USE OF THIS SERVICE MANUAL
This manual discusses the maintenance standards and troubleshooting procedurest o be employ- ed from the standpoint of the repairman, in order that the tractor can perform in top condition through correct servicing procedures.
Repairs conducted by estimations or force of habit could lead to unexpected accidents and serious trouble. Always carry out repairs in a scientific and accurate manner.
= SERIAL NUMBERS
Do not limit your work merely to the actual repair work alone but always strive to carry out dependable servicing, including such efforts as noting down the servicing history of your tractor and keeping maintenance records.
In order to easily process any claims it is imperative that the full details and serial numbers of parts be clearly written on the prescribed form, and then sent to the dealer for forwarding to the manufacturer.
- s& , p /
Drive
CONTENTS
I. |
Nomenclature . . . . . . . . . . . |
. . . . . 1 |
3 |
Inspectionand characteristics |
. . . . . . . . . . |
69 |
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|
. |
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|
II. |
|
|
4. Cautionsduring handling and assembly . . . . . |
70 |
||
Specifications. . . . . . . . . . . . |
. . . . . 5 |
5. Instructionsfor disassembly and assembly . . . 71 |
||||
1. Specifications . . . . . . . . . . . . . . |
. . . . 5 |
6. Maintenance and inspection. |
. . . . . . . . . . |
a1 |
||
2 Power train . . . . . . . . . . . . . . . |
. . . . 10 |
7. Starter motor . . . . . . . . . |
. . . . . . . . . |
72 |
||
|
Power train (1) . . . . . . . . . . . . . |
. . . . 10 |
8.Thermostart (optional) . . . . |
. . . . . . . . . |
78 |
|
|
Power train (2) . . . . . . . . . . . . . |
. . . . 11 |
9. Turn signal lights (optional) . . |
. . . . . . . . . |
77 |
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|
Power train (3) . . . . . . . . . . . . . |
. . . . 12 |
10.Water temperature indicator light . . . . . . . . |
77 |
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|
Power train (4) . . . . . . . . . . . . . |
. . . . 13 |
11. Engine lube oil pressure . . . . |
. . . . . . . . . |
77 |
|
3. Transmission sectional view . . . . . . . |
. . . . 14 |
12.Horn . . . . . . . . . . . . . |
. . . . . . . . . |
78 |
||
4. Electric wiring diagram . . . . . . . . |
. . . . 15 |
13. Lights . . . . . . . . . . . . |
. . . . . . . . . |
78 |
||
5. Fuel system . . . . . . . . . . . . . . . |
. . . . 17 |
74.Safety start switch . . . . . . |
. . . . . . . . . |
78 |
||
6. Engine lubricating system . . . . . . . . |
. . . . 17 |
X . |
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7. Cooling system . . . . . . . . . . . . . |
. . . . 18 |
Tractor construction and maintenance . . |
79 |
|||
8. Transmission lubelhydraulic system |
. . . . . 18 |
1. Clutch and relevant items . . . |
. . . . . . . . . |
79 |
||
Ill. Tractor separation . . . . . . . . . . . . |
. 19 |
|
I V. |
.Disassemblysequence . . . . . . . . . . . . |
20 |
V . |
Engine disassembly . . . . . . . . . . . . . |
31 |
V I. |
Engine construction and maintenance |
. 35 |
1. Cylinder liners . . . . . . . . . . . . . . . . . |
35 |
|
2. Pinons . . . . . . . . . . . . . . . . . . . . . |
36 |
|
3. Pistonrings . . . . . . . . . . . . . . . . . . |
37 |
|
4. Piston pin . . . . . . . . . . . . . . . . . . . . |
38 |
|
5. Connecting rods . . . . . . . . . . . . . . . . |
39 |
|
6. Crankshaft . . . . . . . . . . . . . . . . . . . |
40 |
|
7. Camshaft . . . . . . . . . . . . . . . . . . . . |
43 |
|
8. Cylinder head . . . . . . . . . . . . . . . . . |
45 |
|
9. Combustion chambers . . . . . . . . . . . . . |
46 |
|
10. Rocker arm assembly. . . . . . . . . . . . . . |
48 |
|
11. Injection pump and injection valve . . . . . . . |
48 |
|
12 Governor . . . . . . . . . . . . . . . . . . . . |
53 |
|
13. Lubricating oil pump . . . . . . . . . . . . . . |
53 |
|
14. Cwling system . . . . . . . . . . . . . . . . . |
54 |
|
15. Gears . . . . . . . . . . . . . . . . . . . . . |
54 |
|
16. |
Oil seals. O-rings and ball bearings . . . . . . . |
54 |
V I I . Engine assembly . . . . . . . . . . . . . . . |
55 |
|
V I II. Engine adjustments . . . . . . . . . . . . |
61 |
|
1. Governor linkage . . . . . . . . . . . . . . . . |
61 |
|
2 Valve clearance . . . . . . . . . . . . . . . . |
.61 |
|
3. Fuel injection timing . . . . . . . . . . . . . . |
62 |
|
4. Fan belt tension . . . . . . . . . . . . . . . . |
63 |
|
5. Air venting (bleeding) . . . . . . . . . . . . . . |
63 |
|
6. Other measurements and inspections . . . . . . |
64 |
|
I X. |
Electrical equipment . . . . . . . . . . . . |
65 |
1. Battev . . . . . . . . . . . . . . . . . . . . . |
65 |
|
2. Governor & current limiter . . . . . . . . . . . |
67 |
|
2 Transmission and related items . . . . . . . . |
. 83 |
||||
3. Brake . |
. . |
. . . |
. . . . . . . . . . . . . . . . |
89 |
|
4. Hydraulic lift device . . . . . . . . . . . . . . |
90 |
||||
5.Steering |
. . |
. . . |
. . . . . . . . . . . . . . . |
. 93 |
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6. Front axle and rear axle . . . . . . . . . . . . . |
95 |
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X I . Tractorassembly . . . . . . . . . . . . . . |
103 |
||||
1. General assembly |
. . . . . . . . . . . . . . . |
103- |
|||
2 Transmission assembly . . . . . . . . . . . . |
105 |
||||
2-1 |
P.T.O. |
driving shaft assembly . . . . . . |
105 |
||
2-2 |
'P.T.o.fork shaft assembly . . . . . . . |
106 |
|||
2-3 Front P.T.O. shaft assembly |
|
||||
|
(YM135D.YM155D) . . . . . . . . . . |
107 |
|||
2-4 |
Front P.T.O. |
shift shaft assembly |
|
||
|
(YM135D.YM155D) . . . . . . . . . . |
107 |
|||
2-5 |
Drivenshaft assembly . . . . . . . . . . |
108 |
|||
2-6 |
Counter shaft assembly . . . . . . . . . |
109 |
|||
2-7 |
Low-highshift shaft assembly. . . . . . |
110 |
|||
2-8 |
Main change shaft assembly . . . . . . . |
110 |
|||
2-9 |
The fork of the 2ndl3rd speed shift |
|
|||
|
shaft assembly . . . . . . . . . . . . . |
Ill |
|||
2-10 |
Reversellst speed shift shaft |
|
|||
|
assembly . |
. . . . . . . . . . . . . . . |
112 |
||
2-11 |
Main shaft and transmission front |
|
|||
|
cover assembly . . . . . . . . . . . . . |
113 |
|||
2-12 |
Gear shaft lever assembly . . . . . . . . |
114 |
|||
2-13 |
P.T.O. |
reduction shaft assembly. . . . . |
115 |
||
2-14 |
Connecting shaft assembly . . . . . . . |
115 |
|||
2-15 |
P.T.O. shaft assembly . . . . . . . . . . |
116 |
|||
2-16 |
Differential lock shaft aisembly . . . . . |
117 |
|||
2-17 |
Final reduction pinion and rear |
|
|||
|
axle shaft assembly . . . . . . . . . . . |
118 |
|||
2-18 |
Differential |
device . . . . . . . . . . . |
,021 |
||
2-18 |
(a) |
Disassembly . . . . . . . . . . . . . |
12 |
||
2-18 |
(b) |
Assembly. . . . . . . . . . . . . . . |
122 |
||
2-19 |
Cam.differential lock assembly . . . . . |
122 |
|||
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3. Front axle assembly . . . . . . . . . . . . . |
|
|
3-1 |
Front axle assembly (YM155D. |
|
|
YM135D) . . . . . . . . . . . . . . . . |
|
3-2 |
Front axle assembly (YM155. YM135) . |
|
3-3 |
Front axle assembly (YM155D. |
|
. |
YM135Dl . . . . . . . . . . . . . . . |
|
3-4 |
Differential device assembly (YM155D. |
|
|
YM135D. front axle) . . . . . . . . . . |
|
4.Center pin assembly . . . . . . . . . . . . . |
|
|
4-1 For YM155D & YM135D . . . . . . . |
|
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4-2 For YM155 & YM135 . . . . . . . . . |
|
|
5. Brake drum assembly . . . . . . . . . . . . . |
|
|
6. Hydraulic system assembly . . . . . . . . . . |
|
|
6.1 |
Cylinder head assembly . . . . . . . . . |
|
6 2 |
Lifting shaft. liftarms. liff crank. |
|
|
hydraulic piston rod assembly . . . . . |
|
6-3 Control valve assembly . . . . . . . . . |
|
|
6-4 |
Hydraulic control fork. hydraulic |
|
|
control lever assembly . . . . . . . . . |
|
6-5 Auto-return rod. operator'sseat |
|
|
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bracket assembly . . . . . . . . . . . . |
|
6-6 Slow return valve assembly . . . . . . . |
|
n |
6-7 |
Lift arm assembly . . . . . . . . . . . . |
|
6 8 |
Operational precaution polnts . . . . . |
XI1. Tractor adjustments . . . . . . . . . |
. . 141 |
X I II. Tractor trouble-shooting . . . . . . . |
. 142 |
1. Engine and related items . . . . . . . . . . |
. 143 |
2 Electrical system . . . . . . . . . . . . . . |
. 145 |
3. Brake system . . . . . . . . . . . . . . . . |
. 745 |
4. Clutch and related i t e m . . . . . . . . . . |
. 746 |
5.Transmission and related items . . . . . . |
. 147 |
6. P.T.O. and related items . . . . . . . . . . |
. 147 |
7. Hydraulic system . . . . . . . . . . . . . . . |
148 |
8.Steering and suspensionsystem . . . . . . |
. 149 |
X I V. Regular inspections . . . . . . . . . . |
. 150 |
X V. Tightening torque ratings . . . . . . |
. 151 |
XVI. Maintenance equipment and tools |
. . 153 |
I. NOMENCLATURE
Model
YM135
(1) Muffler
(2) Brake pedal
(31 Step
(4) Differential lock pedal
(5) Instrument panel
(6)Drag rod
(7) Knuckle arm
(8) Bumper
(9) Battery
(101 Radiator
(111 Hood
(12) Engine
(13) Air cleaner
(14) Fuel tank
(15) Throttle lever
(16) Steering wheel
(17) Gear shift lever
(18) P.T.O. shift lever
(19) Hydraulic control lever
(20) Assist bar
(21) Operator'sseat
(22) Fender
(23) Lift link
Model
YM155
(24)Top link
(25)Top link hinge
(26)P.T.O. shaft
(27)Lower link
(28)Lift arm
(29)Rear tire
(30)Rear wheel
(31) Brake
(32)Transmission case
(33)Brake rod
(34)Pitman arm
(35)Range.. -shift. lever
(36)Steering gear box
(37)Clutch pedal
(38)Clutch housing
(39)Starter motor
(40)Kingpin
(41 Front wheel
(42)Front tire
(43)A.C. Generator
(44)Headlight
(45)Front axle center-pin
Model
YM135D
(1) Muffler
(2) Brake pedal
(3) Step
(4) Differential lock pedal
(5) Instrument panel
(6) Drag rod
(7) Nukle arm
(8) Bumper
(9)Battew
(10) Ragiator,
(11) Hood
(12) Engine
(13) Air cleaner
(14) Fuel tank
(15) Throttle lever
(16) Steering wheel
(17) Gear shift lever
(18) P.T.O. shift lever
(19) Hydraulic control lever
(20) Assist bar
(21) Operator'sseat
(22) Fender
(23) Lift link A
(24) Top link
Model
YM155D
(25)Top link hinge
(26)P.T.O. shaft
(27)Lower link (281 Lift arm (291 Rear tire
(30)Rear wheel (311 Brake
(32)Transmission case (331 Brake rod
(34)Front wheel drive lever
(35)Pitman arm
(36)Range shaft lever
(37)Steering gear box
(38)Clutch pedal
(39)Clutch housing
(401Starter motor
(41I Front wheel
(42)Front tire
(43)A.C. Generator
(44)Headlight
(45)Front axle center pin (461 Range shift lever
(47)Front axle
(48)Front differential
(49)Front drive propeller
II.SPECIFICATIONS
1. SPECIFICATIONS (1)
1
EN- Engine
GlNE block
I I
L
Fuel system
I
|
Item |
I |
Unit |
/ |
YM735 I YM735D I YM155 I YM155D 1 |
|||
|
Engine model |
|
|
|
2T73A |
|
2TR13A |
|
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Type of engine |
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Diesel engine |
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|
Number of cylinders |
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|
I |
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2 |
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|||
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Cylinder layout |
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Vertical in line |
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iBore |
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|
II |
2.874 x 2.953 |
II |
2.953 x 2.953 |
|
stroke |
I |
j n |
173mm x 75mml |
(75mm x 75mml |
||||
|
Cylinder liner type |
|
|
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Wet type |
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||
I ~ v c l e |
1 |
|
I |
4-strokecvcle |
I |
|||
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Combustion chamber type |
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|
1 |
Precombustion chamber |
|||
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Valve system |
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Overhead valves |
|||
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Displacement |
|
cu. in. |
|
38.3 (627 cc) |
I |
40.4 (662 cc) |
|
( |
Comoression ratio |
|
|
|
23 : 1 |
|
||
Maximum output |
|
hplrpm |
|
13/2700 |
1 |
1512700 |
||
|
Maximum torque |
|
"'FL1 |
25.312400 |
28.912200 |
|||
|
|
|
|
(3.5 krml2400) |
14.0 k~-m/2200) |
|||
[ n g i n e weight |
1 |
lbs |
1 |
242.3(llOkgI |
! |
253.3(115kg) |
||
/ |
Pistion |
I Compression rings |
1 |
|
I |
|
3 |
|
|
rings |
/ Scraper rings |
|
|
I |
|
1 |
|
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Valve |
Intake |
Open |
I |
degree |
20' before T.D.C. |
||
|
t~ming |
valves |
Closed |
/ |
degree |
/ |
50'after B.D.C. |
|
|
|
Exhaust Open |
I |
degree |
/ |
50' before B.D.C. |
||
|
|
ivalves |
Closed |
/ |
degree |
|
20° after T.D.C. |
|
|
Valve |
Intake valves |
1 |
~n. |
|
0.0078 (0.2mm) |
||
|
clearances |
Exhaust valves |
in. |
1 |
0.0078 (0.2mm) |
|||
|
Engine starting |
|
1 |
|
Electricstarting |
|||
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Ignition |
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|
I |
Compression ignition |
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lnjection timing |
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24'f lobefore T.D.C. |
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Injection pump type |
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|
|
Yanmar Bosch PFR 2K |
||
1 |
Injection pump plunger diameter I |
. |
< |
0.2756 |
(7mml |
|||
|
In. |
I |
||||||
|
Injection plunger stroke . |
1 |
~n. |
|
0.2756 |
(7mml |
||
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Injection valve type |
|
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Semi throttle type |
|||
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Injection valve diameter |
1 |
~n. |
|
0.1958 (5mm) |
|||
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lnjectlon pressure |
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|
psi |
|
2.276 (160 kglcm21 |
||
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Injection order |
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1 - 2 |
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I Fuel |
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Diesel oil |
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Fuel tank capaciry |
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U.S.ga1. |
|
2.5 (9.5 1) |
4.0 (152) |
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Speed control method |
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All speed mechanical type |
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A SPECIFICATIONS(2)
1
EN-
I!61NE
I
CHAS-
S I S
Lubri-
cating.
system Cooling system Electrical
Isystem
I
Power train
Item
Lubricating pump type
Lubricatins system
Lubricatingoil capacity
Cooling system
Heat dissipation method
Starter motor type
Starter motor capacity
A.C. generator type
Generator capacity
Current limiter
Battery voltage, capaciw Thermostart plug type (optionall Thermostan capacity
Clutch Clutch type
Fac~ng(outside diam. x inside diam. x thickness
Facing area
Static torsue capacitv TransTransmission type
mission
Transmission meeds Travel [Forwardl speed* 1st
1
1
1
1
Unit
U.S.ga1
V-KW
V-W
V-AH
V-A
In.
sq. in. ft.Ibs
IYM135 YM135D YM155 YM155D
Trochoid
Force feed lubrication 0.44 (2.0 1)
Water-cooled
Radiator
S114-219 (Hitachi), D.C. compound motor '12-1.2
(GP8108 (KOKUSAN) magneto revolving 12-8.5
RS2130 (KOKUSANI 12-35
SH100-02 (HITACHI) magnetic valve type 12-13
Mechanical dry single plate
7.09 x 4.92 x 0.33 (180mmx 125mm x 8.4mrn)
20.4 (132cm2)
97.7 (13.5 kg-m)
Mechanical. constant selective mesh gears combination
6-speedfor forward, |
2-speedfor reverse |
|||
I |
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|
|
1 MPH (kmlhl |
1 |
MPH (kmlh) |
||
0.71 |
(1.14) |
0.67 |
(1.071 |
|
1
I
r'\
(*Difference in specificarion depending on serial number)
|
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|
Item |
CHAS- |
Running |
Rear axle type |
|
SIS |
gear |
Front |
Toe-in |
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|
wheel |
Camber |
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align- |
Caster |
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|
ment |
Trail |
I /
system
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|
/ |
King-pin inclination |
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Steer- 1 Steering svstem |
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Ing |
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Gear ratio |
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system |
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Steering wheel diam. |
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Gear box oil capacity |
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Tires |
|
Front |
Tire size |
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|
wheels |
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Tire pressure |
|
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Rims |
/ |
Option- |
Front |
Tire size |
|
al tires |
I wheels |
I |
||
I |
|
I |
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ITire pressure |
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Rims |
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|
wheels |
Tire pressure |
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Rims |
I |
option-/ Rear |
I Tire size |
||
|
al tires |
wheels |
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Tire pressure |
-Rims
Brakes Type of main brakes
Parking brake type
Lining surface area
I |
Lining (width x thick- |
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|
ness x length) |
|
Brake drum diameter |
|
Method of activation |
I |
Type |
|
Type of hydraulic pump |
|
Position of pump |
/ |
Purno drive |
1 |
Pump discharge capacity. |
|
Unit |
YM135 |
|
YM135D |
YM155 |
YM755D |
. |
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Semi-floating |
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in. |
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0.16-0.32 (4-8mm) |
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degree |
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|
3O |
o0 |
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|
- |
|
degree |
|
0' |
|
2.5O |
|
2.5" |
|||
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in. |
|
0 |
|
0.43 (11 |
|
0 |
0.43 |
(11 |
- |
|
|
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|
1 |
mm) |
1 |
|
mm) |
||
( |
degree |
( |
7O |
6" |
7O |
1 6 O |
1 |
|||
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Ball - screw |
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|||
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15.4 : 1 |
|
18.9 : 1 |
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|||
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in. |
|
15.0 (380mm) |
|
15.8 (400mm) |
|
||||
|
U.S.ga1. |
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|
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0.05 (0.2 1) |
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4.50-10- 5-12- |
|
4.50-10- 5-12- |
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||||
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2PR-FSR 2PR-FSL |
|
ZPR-FSR 2PR-FSL |
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|||||
|
psi |
|
17.8 (1.25 kg/cm2) |
|
17.8 (1.25 kg/cm2) |
|
||||
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|
3.506 x |
/ |
4JA-12 |
1 |
3.50 x |
14JA-12 |
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|
I |
lOGA |
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10GA |
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6-12-2PR-FD |
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/20x8.00-10-4PR- 1 |
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lb/in2 |
124.2 11.7 |
kg/cm2)PD 1/ |
17.1 11.20 kg/cm2) |
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5JA-12 |
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(I |
psi |
125.6 (1.8 kg/cm2) |
1I |
22.8 (1.6 kg/cm2) |
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5Xk-16 |
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5Zk-16 |
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127~8.50-15-~PR- |
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8-16-4PR-FD |
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PD |
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psi |
11.4 (0.8 kg/cm21 |
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22.8 (1.6 kg/cm2) |
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7001x 15DT |
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5%K-16 |
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Internal expansion mechanical brakes |
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Locking foot brake |
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sq. in. |
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16.1 (104 cm2) |
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~n. |
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0.98 x 0.16 x 4.09 (25 x 4 x 104mm) |
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in. |
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4.3 (IlOmm) |
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Main brakes |
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by foot |
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Parking brake |
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bv hand |
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Hydraulic |
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/ |
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Gear pump |
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In front of engine governor chamber |
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4 |
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Claw couolino |
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1 |
~.S.gal.j |
3.76 (14.2 1) at 2700 rpm |
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/-. SPEC1FICATIONS (4)
With 3-point hitch |
99.2" l2520rnml |
,--
(*Difference in specification depending o n serial number)
SPECIFICATIONS (5)
ance |
6.2 |
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7.2 |
6.9 |
7.2 |
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(1.9m) |
(2.2m) |
(2.lm) |
(2.2ml |
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Maximum grade |
degree |
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35O |
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35O |
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Braking distance |
ft. |
11.5 (3.5171) |
11.5 (3.5m) |
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.-
[DIFFERENCE I N SPEClFlCATlONSj
P.T.O.speed, r.p.m.
,--.
2. POWER TRAIN (1)
NOTE: 'New'indicates those after No. 51001.
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'Old' indicates those before No. 51000. |
No. of sear teeth |
1 |
POWER TRAIN (2)., YM135(D)IYM155(D) POWER TRANSMISSION STRUCTURAL DRAWING
,--.
FRONT TIRE
Nore:
(I)0hold only ro YMISZDIYM135D
(2)* Shofi. nnd geor are combined
I
DIFFERENTIAL LOCK
POWER TRAIN (3) |
YM135(D)/YM155(D) FRONT AXLE SECTIONAL VIEW |
n |
(Before Serial No. 51000) |
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FRONT DRIVING SHAFT -7
KNUCKLE ARM. (L)
FRONT AXLE CASE
BEVEL GEAR
DIFFERENTIAL PINION
DIFFERENTIAL
SIDE GEAR
LOWER FRONT GEAR CASE
DIFFERENTIAL
PINION SHAFT
DIFFERENTIAL HOUSING
BEVEL GEAR
FRONT AXLE SHAFT
FRONT GEAR CASE CAP
FRONT WHEELTIRE |
2 |
POWER TRAIN (4)
Yhl135(D)/YrV:155(D)FRONT AXLE SECTIONAL VIEW
IAfter Serial No. 51001)
FRONT DRIVING SHAFT7 |
r FRONT AXLE (L) |
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FRONT AXLE CASE 7 \ |
i |
r K N U C K L E ARM (L) |
FRONT WHEEL TIRE 'J
3. Yh1135(D)/YM155(D) TRANSMISSION SECTIONAL VIEW
DIFFERENTIAL LOCK CLUTCH GEAR
DIFFERENTIAL, LOCK CAM COVER
FFERENTIAL LOCK CAM
#'
DIFFERENTIAL HOUSl
FINAL REDUCTION
GEAR HOUSING ASS
FINAL REDUCTI
PINION (Ll DIFFERENTIAL
INION SHAFT
BRAKE COVER (
BRAKE COVER (Rl
FINAL REDUCTION
EAR AXLE SHAFT
FINAL REDUCTION GEAR REAR WHEEL HUB
FINAL REDUCTION GEAR
REAR AXLE HOUSING IL)
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REAR AXLE HOUSING IRI |
FRONT P.T.O. |
SLIDING GEAR |
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LOW-HI REDUCTION GEAR |
LOW-HI SLIDING GEAR |
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FRONT DRIVING GEA |
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REVERSE GEAR |
NSMlSSlON HOUSING |
REAR COVER
P.T.O. SHAFT
COUNTER SHAFT
1STlREVERSE
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0. REDUCTION GEAR |
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MAIN CHANGE S |
.O. REDUCTION SHAFT |
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DRIVEN SHAFT |
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DRIVEN GEAR |
A L REDUCTION |
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DRIVEN GEAR |
GEAR HOUSING |
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E-WAY CLUTCH 10) |
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P.T.O. DRIVING SHAFT |
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TRANSMISSION HOUSING |
.O. REDUCTION GEAR |
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TURN |
TURN |
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SIGNAL |
SIGNAL |
WORK LIGHT |
LEFT |
RIGHT |
HEADLIGHT
LIGHT SWITCH
WATER TEMP ~NDICATORLIGHT (redl
WATER TEMP
OIL PRESSURE
Graan
BUTTON
SWITCH
5. FUEL SYSTEM
6. ENGINE LUBRICATING SYSTEM
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No. 2 cylinder, ontake and exhaust rocker arm |
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No. 1 cylinder. intake and |
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exhaust rocker arm |
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Cylinder head |
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Timing gear case |
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No. 2 cylinder main bearing |
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NO. 1 cylinder main bearing |
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Trochoid pump |
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No. 1 cylindercrank |
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No. 2 cylinder crank |
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Oil |
Oil pan |
R |
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Cylinder block |
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Suction tube |
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Drain plug |
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-17-
7. COOLING SYSTEM
Radiator cap
(Hot water)
1 4 |
Cylinder heaq |
4 |
7 Cylinder block |
Radiator |
I |
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r -
8. TRANSkllSSION LUBEIHYDRAULIC SYSTEM
Hydraulic cylinder
Hydraulic stop valve
/
Hydraulic control lever
Hydraulicprn-tlr- L.-.J 11 |
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outlet |
u r a r pump- |
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Oil strainer |
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Transmission case |
Ill. TRACTOR SEPARATION
NOTES:
(1) Whenever heavy maintenance work such as
separation or assembly is undertaken a special stand (as shown below) should be used. (Please order the stand separately if desired.)
(2) The separation and assembly explanations
will be made on the premise that this stand is
being utilized.
(3) A detailed diagram of the separation and assembly stand is as follows:
IV. DISASSEMBLY SEQUENCE
Division |
Pan Name |
7.InstalInstallation
lation |
stand |
stand |
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I2 I~im/ Flange bolts
I
/1) Utilize the top link hinge
assembly bolt (12 x 451 to at- |
1 |
1 tach the installation stand (B). |
1 |
I2) Utilize the front axle bracket assembly bolt (12 x 30) to attach the disassembly
stand (A).
3) Raise the rear tires by turning the adjusting bar of both stands (A) and (B). Prior!to this adjustment loosen the flange bolts of the rear tire rim.
4) Be sure to adjust both stands (A1 and (BI uniformly to ensure that the tractor remains level.
CAUTION:Whenattaching the front stand (A ] be sure the front tires amain in contact with theground.
I |
Loosen the two flange bolts |
and remove the snap pin (10 |
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x 78).The rear tire can then |
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be removed. |
Division |
Part Name |
Illustration |
CautionlRemarks |
I |
3 Trans- |
Oil plug 20 |
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Loosen the oil plug I201to |
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mission |
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tdrain the oil. |
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case |
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Gear |
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case |
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='Y |
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final |
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reduction |
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4 |
Pin 8 x 28 |
Pull out the cotter pin (2 x 151 |
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(Differential |
and remove the pin (8 x 281.- |
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lock rod) |
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5 |
Pin 8 x 17.5 |
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(Brake rod) |
A
Pull out the cotter pin (2 x 151 and remove the pin (8 x 17.5).
7 Seat |
Opera&ores |
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seat bracket |
8 Trans- |
High-pressure |
mission |
pipe |
case |
I |
Gear |
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final |
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lllunration |
CautionIRernarks |
Remove the four nuts from the bolts (10 x 651, the two nuts from the bolts (8 x 20). and remove the fender.
The operator'sseat can be removed by removinq the two bolts I12 x 25)and the three bolts (10x 201.
Loosen the adapter, and remove the high pressure pipe from the hvdraulic cvlinder
I
I
- |
Division |
Part Name |
Illustration |
CautionIRemarks |
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9 Tranr |
Low-pressure |
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Remove the three bolts (6 x |
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mission |
pipe |
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181and dismantle low pres- |
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case |
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sure pipe (B). |
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Gear |
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Be sure not to damage the |
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oil filter when dismantl- |
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case |
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ing. |
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ass'y |
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final |
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reduction |
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I |
Electric wire |
Pull out the wire behind |
harness |
the clutch housing. |
Dismantling |
Remove the seven nuts (12). |
transmission |
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case from |
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clutch |
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housing |
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[Procedure |
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-
v |
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1 |
Division |
Part Name |
Illustration |
CautionIRemarks |
72 Trans- |
Filter |
|
Follow the same proceduri |
mission |
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as in Step 9. |
case |
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Place a container for oil, |
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Gear |
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and remove the oil filter. |
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case |
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ass'y |
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final |
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reduction |
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-
13Dismantlingthe transmission case from the clutch
housing
n |
[Procedure 23 |
.. |
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-
14Separation of transmission case from final reduction gear case
Separate the transmission case from the clutch housing.
CAUTION:Adjusr rhe adjuster in Step I so the mansmission case and the clurch housing are level.
Remove the ten nuts (10) and separate the transmission case from the final reduction gear case.
CA V n O N :
I ) Whenpreforming this' procedure, if the nuts (on rhe left and right side) at the arrow
mark are hard to remove due to rhe exnuded porrion, gradually remove rhe transmission case and remove the nurs.
2) Arrach these nurs firsr during assembly.
A
Division |
Part Name |
15 Housing |
L i i arm |
hydrau- |
(L) (R) |
lic cyl- |
|
inder |
|
-
16Hydraulic cylinder housing
77 Brake |
Brake ILI (R) |
I
Illustration
Lilt a n rr
.ip~
.-
.IS0..
CautionIRemarks
11 Lift arm (L)
Remove the lift arm set bolt, and force off the lift arm (L).
21Lift arm (R)
a)Remove lift arm set bolt.
b)Remove the two bolts (8x 201, and dismantle the auto-return rod support.
CI Lift off the lift arm (Ri.
Remove the ten bolts (10 x 35). |
L |
and separate the hydraulic |
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cylinder housing from the |
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final reduction gear case. |
Rsmove the nuts 18) (on the left & right side), and remove the brake (L).(Rl.
.-
Dlvision |
Part Name |
Illustration |
78 Brake Brake
drum
- ,. -*<c*:.*: |
.- |
;.. :-* |
79 Gear |
Rear axle |
case |
housing |
ass'y, |
(L1 (R1 |
final |
|
reduc- |
|
tion |
|
. .
Caution/Remarks
1) Remove the bolt (8 x 16) lock plate, washer, and
lock plate.
2) Drive the bolt into the brake drum to remove it.
NOT&-:For Step 2) use an M8 bolr wit17 a thread length over 1 in (25 mm).
For example, i7ydraulic adapror coverfiring bolr /M8 x 451
11 Loosen oil plug (101and drain the oil.
2) Remove the 8 bolts (10 x 60). and the (12 x 60) bolt. and the two nuts (121.
3) Use a plastic hammer to loosen the flanged part and bolt pans. Remove with rhe rear axle shaft as the base.
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