TM 9-2330-388-14
Table 4-1. Unit Preventive Maintenance Checks and Services
Q-Quarterly
S - Semiannually
A - Annually
B - Biennially
H - Hours
INTERVAL
ITEM TO BE INSPECTED
ITEM
PROCEDURE: Check for and have repaired,
NO
Q
S
A
B
H
filled, adjusted as needed
Perform operator/crew PMCS prior to or in conjunction with unit PMCS if:
a. There is a delay between daily operation of semitrailer and unit PMCS.
b. Regular operator Is not assisting/participating.
1
Tank.
Check inside of tank thoroughly:
a. Check manhole cover for rust or debris. If rust or debris are found, for cleaning,
refer to to para 4-36. For sanitizing, refer to para 4-37.
b. Check tank for rust at intersections where brackets are welded to tank. If rust is
found, notify unit medical personnel for re-certification.
c.
Check condition of paint. Notify direct support maintenance of any damage found.
2
Electrical System.
a. Check chassis electrical harness connections for security and condition. Check
harness for worn or frayed insulation.
b. Inspect intervehicular cable receptacle for damage or corrosion.
3
Bogie Assembly.
a. Tighten loose cross tube U-bolts.
b. Check spring leaves, clips, and spring U-bolts.
4
Towing Connections.
Inspect condition of kingpin for wear. Kingpin should be replaced when any of the
following conditions exist:
a. Wear of 1 /1 6-inch over 1/4 of the circumference of the kingpin. This would be a
condition of uneven wear on one or more sides of the kingpin wear surface.
4-4
