TM 5-5420-234-14&P
This task covers:
a. Removal
c. Cleaning/Inspection
e. Installation
b. Disassembly
d. Assembly
f. Follow-on Maintenance
INITIAL SETUP
Tools and Special Tools
O-ring (2) (Item 58, Appendix K)
Pan, Drain, 4-Gallon (MIL-P-45189)
O-ring (2) (Item 78, Appendix K)
Tool Kit, General Mechanic's: Automotive
Seal Kit (2) (Item 45, Appendix K)
(SC 5180-90-N26)
Seal Kit (2) (Item 50, Appendix K)
Wrench, Combination, 1 1/4 in. (GGG-W-636)
Equipment Condition
Materials/Parts
Wheels chocked (TM 9-2320-279-10)
Adhesive-Sealant, Silicone, RTV (Item 6,
Engine turned off (TM 9-2320-279-10)
Cable Ties (Item 8, Appendix E)
Special Environmental Conditions
Lubricating Oil (Item 20, Appendix E)
Cleanliness is extremely important when working
Tag, Identification (as required) (Item 23,
on hydraulic equipment. Clean all parts before
disassembly and work in a clean work area.
Gasket (2) (Item 109, Appendix K)
Lockwasher (4) (Item 67, Appendix K)
a. Removal.
NOTE
Steps 1 through 3 are to relieve main frame cylinder pressure. Main frame
cylinder should rotate freely when pressure is relieved.
It may take two to three minutes before pressure is relieved.
(1) Turn engine switch (1) to ON position.
(2) Turn light control switch (2) to STOP LIGHT position.
(3) Turn LHS MODE SELECT switch (3) to no. 1 (AUTO) position.
NOTE
If hook arm and/or main frame are above proximity switch(es), it will be
necessary to hold a metal object in front of switch(es) to relieve pressure.
(4) After pressure is relieved, turn LHS MODE SELECT switch (3), light control switch (2) and engine
switch (1) to OFF position.
