4-- 10T--343
4.6.2 Check and Replace Isolators/Shockmounts
a. Replacement Criteria
CAUTION
Continued operation with failed
shockmounts may result in engine or
generator damage.
When a s hockmount has been cut, split, abraded or has
flared due to normal deterioration, it must be replaced.
Damage tothe m ounts may notbevisible wheninstalled
and under load from the component. To correctly
inspect shockmounts, they must be removed.
b. Engine Isolator/Shockmount Replacement
1. Use the two lift eyes to lift and support the engine.
2. Remove truss, unidrive isolator and all hardware as
shown in Figure 4-9, if equipped.
3. Remove all hardware as shown in Figure 4-9.
4. Raise the engine just enough to remove the
shockmounts (Figure 4-9 item 4).
5. Install new shockmounts.
NOTE
For torque values refer to paragraph 4.7.
6. Lower the engine enough to assemble hardware as
shown and torque per paragraph 4.7.
7. Remove chains from the lift eyes.
ENGINE
FRAME
1
3
4
5
2
3
1. Bolt
2. Lock Washer
3. Snubbing Washer
4. Shockmount
5. Flat W asher
Figure 4-9 Engine Shockmounts
c. Generator Shockmount Replacement
1. Use the two lift eyes to lift and support the engine.
2. Remove shockmount hardware.
3. Raise the generator just enough to remove the
shockmounts (Figure 4-10 item 7).
4. Install new shockmounts.
5. Lower the engine enough to assemble hardware as
shown and torque. Refer to paragraph 4.7 for torque
values.
6. Remove chains from the lift eyes.
1
13
12
11
10
9
8
7
6
5
4
2
GENERATOR
FRAME
3
3
12
INSTALL MOUNT
WITH LARGE
FLARE AT TOP
FRAME
7
8
3
4
1. Scre
(5/8)
2. Mounting Base
3 Flat W asher (5/8)
4. Locknut (5/8)
5. Locknut (1/2)
6. Flat W asher (1/2)
7. Shockmount
8. Support Plate
9. Snubbing Washer
10. Screw (1/2)
11. Screw (3/8)
12. Flat Washer (3/8)
13. Locknut (3/8)
Figure 4-10 Generator Shockmounts
