GROVE Published 1-20-2017, Control# 483-02 4-25
CD5515-2/YB5515-2 SERVICE MANUAL HYDRAULIC SYSTEM
12. Remove four capscrews (1) from mounting flange (3).
These screws were installed with Loctite® to hold them
in place.
The screws will require 35 - 45 Nm (300 - 400 lb-in) of
torque to break loose and 11 Nm (100 lb-in) torque to
remove. Do not use an impact wrench on the screws.
This could result in rounded heads or broken sockets.
NOTE: If a torque higher than given above is required to
break the capscrews loose, apply heat according to
the following:
When heated, Loctite partially melts. This reduces
the torque required to remove screw. Use a small
flame propane torch to heat a small area of the
housing where the screws enter. Figure 4-15. Be
careful not to overheat the housing and damage
the motor. Gradually apply torque to the capscrew
with a socket wrench as heat is applied for 8 to 10
seconds. As soon as the screw breaks loose,
remove the heat from the housing. Continue
turning the screw until it is completely removed.
Repeat for other capscrews.
13. Carefully remove flange (3) Figure 4-13 from housing
(10).
NOTE: Important: Some motors may have a quad seal and
back-up ring in place of the pressure seal. The
quad seal and back-up ring are no longer available
and are replaced by the pressure seal. They are
interchangeable, but some precautions must be
taken to insure proper installation. Follow the
reassembly instructions.
a0949
FIGURE 4-13
1. Screw (4)
2. Exclusion Seal
3. Mounting Flange
4. Backup Ring *
5. Shaft Pressure Seal *
6. Seal *
7. Bearing Race
8. Thrust Needle Bearing
9. Output Shaft
10. Housing
11. O-Ring
12. Plug
13. Seal (3) *
14. Drive Shaft
15. Spacer Plate
16. Gerotor Set
17. End Cap
18. Seal Washer (7) *
19. Screw (7)
* Included In Seal Kit
Swing Motor
a0764
FIGURE 4-14
13 mm (1/2”)
13 mm (1/2”)
Reference Only
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