TM 9-2330-294-14
Section IV. PREVENTIVE MAINTENANCE CHECK AND SERVICES (QUARTERLY)
d. Plates. Name plates, caution plates,
struction plates should be thoroughly cleaned and
The equipment record system provides for record-
heavily coated with an application of lacquer (refer
ing repairs required and accomplished on specific
to TM 43-0139).
items of equipment. This will include, but is not
e. Services. organizational maintenance se
limited to adjusting, cleaning, replacing, and
are defined by, and restricted to requirements de-
straightening. Deficiencies and shortcomings not
lineated in the Maintenance Allocation Chart,
corrected by operator, or those discovered during
periodic inspections, will be corrected insofar as
possible by organizational maintenance personnel.
4-11. Quarterly Preventive Maintenance Services
These repairs will be indicated on DA Form 2404
a. Intervals. The quarterly service is performed
and recorded on the organizational maintenance
by organizational mechanics every 3 months inso-
record of the equipment log.
far as practicable, in accordance with the proce-
a. Operator's Procedures. All of the general
b. Purpose. The quarterly preventive main-
procedures given for operator's preventive main-
tenance service insures the correct adjustment,
securing and assembly of all components of the
b. Operator Participation. The vehicle operator
semitrailer. Necessary replacement-s, cleaning, lubr-
usually accompanies the vehicle and assists the
ication, and protection of parts and/or assemblies
organizational mechanics in the performance of
will be accomplished, as required, to give reason-
periodic services.
able assurance of trouble-free operation until the
c. Unwashed Semitrailer. The towing vehicle
next quarterly service is performed.
operator should present the semitrailer for a
scheduled preventive maintenance service in a
4-12. Specific
Procedures for Organizational
reasonably clean condition; that is, it should be dry
Maintenance
and not caked with mud to such an extent as to
Specific procedures for the performance of the
seriously hamper inspection and services, However,
quarterly service for the semitrailer is given in table
washing of the semitrailer should be avoided im-
4-2 for organizational maintenance. The items fall
mediately prior to an inspection, since certain
in numerical sequence, and are arranged to provide
types of defects such as loose parts and oil leaks
for ease of maintenance.
may not be evident immediately after washing.
Table 4-2. Preventive Maintenance Checks and Services (Quarterly)
Q-Quarterly
Total man-hours required: 5.7
Work
Item to be inspected
time
Sequence
procedure
(M/H)
number
BEFORE ROAD TEST
Man-hours required: 2.6
0.2
1
WHEELS AND WHEEL MOUNTING
Inspect cap nuts.Look for unusual rust patterns around cap nuts. This usually is an
indication of looseness. If rust is present, remove wheel, check for darnaged studs; if
serviceable, remount and torque cap nuts to 575-600 pound feet. (para 4-59). Ro-
tate and match tires according to degree of wear.
NOTE
Semitrailers No. 1 through 200 use inner and outer cap nuts and semitrailers
No. 201 and on use outer cap nuts only.
0.3
2
TIRES
Gage tires for correct pressure of 65 psi. Replace missing valve caps and valve ex-
tenders. Check for matched pair. Check tires for uneven wear. Have axle alinement
checked by Organizational Maintenance if tires have unusually rapid wear or high
temperatures. Replace tire if objects such as glass or nails penetrate tire or if average
tread depth is 3/32 inch or less. No repair is authorized.
Change 2