|
| |
TM 5-2420-222-34
3-15.
IDLER GEARS REPLACEMENT.
This Task Covers:
a.
Removal
d.
Assembly
b.
Disassembly
e.
Installation
c. Cleaning and Inspection
d.
Initial Setup:
Equipment Conditions:
Materials/Parts:
•
Timing gear cover removed (see paragraph 3-18).
•
Engine oil (Item 25, Appendix B)
•
Rags (Item 28, Appendix B)
Tools/Test Equipment:
•
Dry cleaning solvent (Item 31, Appendix B)
•
Nonelectrical wire (Item 44, Appendix B)
•
General mechanic's tool kit
•
General mechanic's tool kit
•
Field automotive shop set
•
Timing alinement tool
General Safety Instructions:
•
Dry cleaning solvent is flammable and must not be
used near open flame. Use only in a well-ventilated
area.
a.
REMOVAL
CAUTION
To avoid damage to pistons and valves, do not crank engine assembly with any
timing components removed.
1.
Pry lower idler spur gear (5) on lower idler gearshaft (3) away from cylinder block plate (1) as far as possible.
2.
Using dial indicator, measure and record end play of lower idler spur gear (5). End play must be 0.0010-0.0220 in.
(0.0254-0.5588 mm).
3.
Remove bolt (9) and washer (8) from lower idler gearshaft (3).
4.
Remove thrust washer bearing (7) from lower idler spur gear (5) and spring pin (4).
NOTE
When removing lower Idler spur gear, ensure that other gears do not turn.
5.
Remove lower idler spur gear (5) and sleeve bearing (6) from lower idler gearshaft (3).
NOTE
Perform steps 6 through 9 only if lower Idler gearshaft is damaged.
6.
Remove engine oil pan (see paragraph 3-20).
7.
Remove bolt (11) and washer (10) from cylinder block plate (1) and lower idler gearshaft (3).
8.
Alternately pry and tap lower idler gearshaft (3) from side to side until it can be removed from cylinder block plate
(1).
9.
Remove washer (2) from lower idler gearshaft (3) and spring pin (4).
3-88
|
