TM 9-2330-235-14&P
4-57.
DOUBLE-SWIVELING LEVELING JACK SUPPORT ASSEMBLY MAINTENANCE (M390C).
This Task Covers:
a. Removal
d.
Assembly
b. Disassembly
e.
Installation
c. Cleaning and Inspection
Initial Setup:
Equipment Conditions:
Materials/Parts:
Rags (Item 12, Appendix E)
Dry cleaning solvent (Item 13, Appendix E)
Test Equipment:
Marker tags (Item NO TAG, Appendix E)
General mechanic's tool kit
Thirty lockwashers
Common no. 1 shop set
Personnel Required: Two
a.
REMOVAL
NOTE
Step 1 is for front leveling jack support assembly only.
1. Remove three screws (11) and lockwashers (10) from rear of front leveling jack support assembly. Remove
screw (13) and lockwasher (12) from front center hole. Remove two screws (14), lockwasher (15), and flatwasher
(16) from outside front holes. Remove front leveling jack support assembly from frame.
NOTE
Step 2 is for rear leveling jack support assemblies only.
2. Remove six screws (14) and lockwashers (15) securing rear leveling jack support assembly to frame. Remove
rear leveling jack support assembly. Discard lockwashers.
b.
DISASSEMBLY
1 Remove six bolts (20), lockwashers (19), and cover (18) from housing (17).
Discard lockwashers.
2. Remove nut (33), flatwasher (34), and spring (32) from end of each screw (37) extending through two locking
levers (31). Remove two screws (37) from inside housing (17).
3 Remove two nuts (23), lockwashers (24), screws (25), and levers (26) from ends of two shouldered shafts (3).
Discard lockwashers.
4. Remove eight setscrews (1) from four adjusting nuts (2). Remove adjusting nuts from shouldered shafts (3)
5. Remove four screws (36) and lockwashers (35) from two locking levers (31) on centers of shouldered shafts (3).
While holding locking levers, pull shouldered shafts from housing (17). Remove locking levers Discard
lockwashers.
6. Remove bolt (43) and flatwasher (42) from plate (40) inside housing (17).
4-140