Yard Machines Y60 Operations Instructions Page 180
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LEGEND FIGURE 5-15
Figure 5-14. Cylinder Head Removal
assembly
5-28.
REMOVAL
a. Remove water outlet assembly before
loosening cylinder head bolts. This pre-
vents cracking of the water outlet casting.
b. Remove water outlet bolts and mark
them for proper position, as the bolts
vary in length.
c. Check water outlet casting for
cracks.
d. Remove the rocker arm assembly, noting
the length of the retaining bolts.
Do not
mix these bolts with any others as bolts of
the proper length must be used at reassembly.
See Figure 5-12 for rocker arm removal.
e. Number all pushrods so that they must
be reinstalled in same location, and re-
move all pushrods as shown in Figure 5-13.
f. Check for bent or broken push rods.
Replace bent or broken rods . . . Do Not
attempt to straighten or repair.
g.
Disconnect spring and linkage between
governor and carburetor, and remove carbure-
tor from intake manifold.
h.
Remove cylinder head bolts.
5-18
l.Gasket set
2.
Lifter
3.
Gear
4.
Plunger, spring
6. Bushing
7. Key
8.
camshaft
9. Push rod
10.
Adjuster
11. Rocker arm assembly
12.
Rocker arm assembly
13. washer
14. Hair pin
15. cap
17. Pivot
18. spring
19. support
20. Stud, nut, washer
21. cup
22. Lock
23. Lock
24. Rotator
25. Seat
26. Retainer
27. Spring
28. Spring
29. Seal
30. Guide
31. Guide
32. Seat
33. Valve. exhaust
34. Value intake
35. Head
36. Plug-expansion
37. Head
1.
Attach lifting eyes and remove
cylinder head (with manifolds attached)
from the cylinder block as shown in
Figure 5-14.
NOTE
It may be necessary to tap the
cylinder head sharply with a
fibre hammer a few times to
break the cylinder head gasket
seal.
5-29. DISASSEMBLY Cylinder head dis-
assembly is outlined below.
Refer to
Figure 5-15 for general parts iden-
tification.
a. Using valve spring compressor as
shown in Figure 5-16, compress the valve
springs, remove spring locks . . . release
spring compressor and remove . . . rotator
(exhaust) seat (intake), spring and spring
pilot. See Figure 5-17 for valve parts
removed.
b.
Check valve stem for burrs and re-
move before trying to take valve from
guide (burrs will damage valve guide).
c. Remove all parts of intake and ex-
haust valves in order. Mark valves and parts
and store together for installation in same
order and relationship as removed
- TM 10-3930-647-14&P 1
- NSN 3930-01-085-3767 11
- ForkliftTruck 17
- C500-Y45 17
- Engineering 18
- DATA SHEET 36 18
- Standards 18
- SECTION II 43
- PREPARATION FOR USE 43
- Figure 4-35. Bleeder Jar 81
- AND FUSES 106
- FIGURE 4-75 107
- Plate 9863 113
- Plate 9864 114
- Plate 9865 115
- TRANSMISSION IS IN NEUTRAL 118
- ONTINUED 120
- ROLLER ADJUSTMENT CHECK 132
- PROBABLE CAUSE 139
- 1. ENGINE (Continued) 141
- 2. FUEL SYSTEM 149
- BATTERY, LIGHTS AND HORN 153
- SECTION V 161
- 55. GENERAL INSPECTION 162
- 5-6. GENERAL REPAIR 163
- 5-7. GENERAL REASSEMBLY 164
- 5-8. REPAIR WELDING. CAUTION 165
- 5-14. PREINSPECTION 165
- 5-15. SAFETY 166
- 5-16. FIRE PROTECTION 166
- 5-17. VENTILATION 166
- 5-18. FILLER METALS 166
- 5-19. PREPARATION 168
- 5-20. WELDING 170
- 5-21. INSPECTION 171
- Figure 5-6. Sheet Metal 172
- 5-22. INDEMNITY 172
- Figure 5-7. Engine Mounts 173
- 5-23. ENGINE 173
- WEAR LIMITS 175
- 5-26. ENGINE 178
- 5-27. CYLINDER 178
- Figure 5-13. Pushrod Removal 179
- LEGEND FIGURE 5-15 180
- Figure 5-16. Valve Removal 182
- 5-32. VALVE SEAT REFACING 185
- AND REPLACEMENT 185
- Figure 5-27. Driving Out Seat 186
- 5-36. WATER PUMP REMOVAL 188
- 5-38. REASSEMBLY 189
- 5-39. INSTALLATION 189
- REMOVAL 190
- Figure 5-40. Camshaft Removal 192
- INSTALLATION 193
- Figure 5-43. Gear Timing 194
- Figure 5-44. Oil Pan 195
- AND CRANKSHAFT REMOVAL 195
- Figure 5-48. Flywheel Removal 196
- Figure 5-48C 198
- Figure 5-51. Piston Removal 199
- Figure 5-58. Filing Ring Gap 201
- 5-44. CONNECTING ROD BEARING 202
- REPLACEMENT 202
- 5-47. FLYWHEEL RUNOUT CHECK 204
- Figure 5-83. Fuel Pump 235
- Plate 10244 250
- Output Shaft Assembly 250
- Plate 8039 258
- Clutch Pack Assembly 258
- Plate 10242 260
- Intermediate Shaft Assembly 260
- FIGURE 5-131 297
- FIG 5-133 303
- FIG. 5-160 325
- Figure 5-146. Lift Cylinder 335
- Figure 5-148. “V” Packings 336
- Figure 5-149 337
- “V” Packing Removal 337
- WITH 6-ROLLER CARRIAGES 343
- WORK SAFELY 345
- LATCH OPERATION 345
- INTERMEDIATE RAILS 346
- CARRIAGE CHAINS 349
- CHECKING ROLL PATTERNS 350
- HYDRAULIC CYLINDER AND SEALS 351
- UPRIGHT RACKING 352
- For adjustment procedures 352
- ... refer to the INDEX for 352
- Fig. 16192 355
- Fig. 16193 355
- Fig. 16194 355
- Fig. 16195 355
- REMOVE THE CARRIAGE 358
- Change 1 358
- Fig 13010 382
- BLOCK INNER AND INTERMEDIATE 404
- RAILS WHEN WORKING ON THE 404
- UPRIGHT 404
- Trouble-shooting 427
- NEW PUMP 474
- TRANSMISSION MOUNTING PARTS 486
- Page 7-60 is rescinded 503
- Page 7-63 is rescinded 506
- START -1-4560 536
- END - AND ABOVE 536
- OVERHEAD GUARD 548
- Change 1 INDEX 1 559
- PPENDIX A 565
- MAINTENANCE 571
- APPENDIX B 577
- WARRANTY GUIDELINES 577
- Change 1 C-5 583
- D-1/(D-2 blank) 589
- APPENDIX H 603
- DISTRIBUTION CODES 603
- CHE PARTS (NSN) 605
- CHE PARTS (NON-NSN) 607
- APPENDIX K 609
- TA 1126335 611
- MHE/CCE (NON-NSN) (MANUAL) 613
- 049900-002 629
- This fine document 630
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