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IV-104
HYDRAULIC UNITS
CYLINDERS
INSPECTION AND ADJUSTMENT
Inspection after Disassembly
Clean each part thoroughly with cleaning oil, then
carry out the following checks. When a cylinder has
been disassembled, replace all the seals with new
ones.
Piston Rod
• Replace the rod if there are cracks.
• If the threads are damaged, repair them or replace
it.
• If the plating layer of the plated portion is broken,
rusted or scratched, replace it.
• If the rod is bent more than the limit of 1 mm in
1 m, replace it. (Measure by the method shown in
the figure at right.
If the bending of the rod is within the above limit,
yet is bent a lot in a small distance so that it won
·
t
move smoothly, replace the rod if it makes a
squeaking sound in the operation test after reas-
sembly or if it catches during movement.
• If the inner diameter of the clevis bushing is worn,
replace the bushing.
Tube
• If there are cracks in the welded portion, replace
it.
• Replace the tube if the inside surface is scratched
or if it leaks hydraulic oil.
• If the inner diameter of the clevis bushing is worn,
replace the bushing.
Rod Cover
• If the bushing inner diameter is worn and the
clearance with the piston rod is greater than 0.25
mm, replace the bushing.
• If the inside surface of the bushing is scratched,
and the scratches are deeper than the depth of the
coating layer, replace the bushing.
Measuring the Bend
a. Support the portion of the rod with the same di-
ameter at both ends on V-blocks.
b. Set a dial gauge at the center between the two
blocks.
c. Rotate the rod and take a reading of the maximum
and minimum runout indicated by the dial gauge.
Summary of Contents for TL150
Page 1: ...TL150 Track Loader BOOK No CT7E901 WORKSHOP MANUAL Serial No 21500004...
Page 4: ...0 4...
Page 5: ...I 1 I GENERAL...
Page 18: ...I 14 GENERAL...
Page 19: ...II 1 II SPECIFICATIONS...
Page 44: ...III 1 III MACHINE CONFIGURATION...
Page 94: ...III 51 MACHINE CONFIGURATION ELECTRICAL SYSTEM ELECTRICAL SYSTEM ELECTRICAL WIRING DIAGRAM...
Page 122: ...III 79...
Page 146: ...MACHINE CONFIGURATION III 103...
Page 147: ...IV 1 IV HYDRAULIC UNITS...
Page 152: ...IV 6 HYDRAULIC UNITS HST PUMP 1 Plug 2 Plug 3 Plug 4 Screw 5 Seal Nut 6 Plug Pump Assembly 4 4...
Page 189: ...IV 43 HYDRAULIC UNITS GEAR PUMP INSPECTION AND ADJUSTMENT IV 36 38 TROUBLESHOOTING IV 39...
Page 230: ...IV 84 HYDRAULIC UNITS PILOT VALVE INSPECTION AND ADJUSTMENT IV 79 TROUBLESHOOTING IV 80...
Page 261: ...IV 115 HYDRAULIC UNITS TRAVEL MOTOR DISASSEMBLY AND ASSEMBLY Special tools...
Page 263: ...IV 117 HYDRAULIC UNITS TRAVEL MOTOR...
Page 282: ...IV 136 HYDRAULIC UNITS TRAVEL MOTOR...
Page 283: ...V 1 V TROUBLESHOOTING...