h. Remove locking pin from leg prop assembly on rear of trailer. Swing leg prop back and up
into traveling position and secure with pin.
i. Attach power unit to towing vehicle. (Refer to TM 9-2330-202-14&P.)
Release trailer handbrakes.
Reinstallation After Movement. After movement to a new worksite, install power unit in
accordance with paragraph 4-2.
Section Ill. REPAIR PARTS, SPECIAL TOOLS, SPECIAL TEST, MEASUREMENT AND
DIAGNOSTIC EQUIPMENT (TMDE)
4-5. Tools and Equipment. There are no special tools or equipment required to maintain the
PU-753/M power unit.
Maintenance Repair Parts. Repair parts and equipment for maintenance of this power unit are
listed and illustrated in the repair parts and special tools list in Appendix D of this manual.
Section IV. LUBRICATION INSTRUCTIONS
General. Detailed instructions for the lubrication of the major components of the power unit are
contained in the applicable Lubrication Orders (LOs). Refer to DA Pam 310-1 to ensure that the latest
editions of the L.O.S are used. This section contains lubrication instructions that are not included in
the Lubrication Orders.
Generator Lubrication. Refer to TM 5-6115-585-12 for generator set Lubrication Order.
4.9. Trailer Assembly Lubrication.
a. Trai/er Lubrication. Refer to TM 9-2330-202-14&P for trailer Lubrication Order.
b. Leg Prop Assembly Lubrication. The rear leg prop assembly is a modification to the standard
M116A2 trailer and, as such, does not appear in the associated L.O. Semiannually lubricate leg prop
assembly as follows:
Clean parts in a well-ventilated area. Avoid inhalation of solvent fumes and
prolonged exposure of skin to cleaning solvent. Wash exposed skin tho-
roughly. Dry cleaning solvent (P-D-680) used to clean parts is potentially
dangerous to personnel and property. Do not use near open flame or
excessive heat. Flash point of solvent is 100°F. to 138°F. (38°C. to 59°C.).
(1) Clean hydraulic lubrication fitting and area around lubrication points with P-D-680 or
(2) Inject sufficient GAA grease into hydraulic fitting to lubricate screw threads inside leg prop