(6) Inspect all other parts for cracks, distortion,
and damage. Replace defective parts.
(7) Reassemble and install parts as shown in
d. Air Receiver. Check that air receiver is drained
each time the compressor is shut down. Do not allow
moisture to collect in the air receiver. Drain the air
receiver by opening the air receiver drain valve (4,
of Lubricant Dispensing
a. Keep the lubricant dispensing system parts
clean and free from spilled lubricants. Wipe dispen-
sing equipment and hoses before stowing after use.
Clean spilled lubricants from the trailer and other
b. Inspect the dispensing hoses and nozzles for
d a m a g e . Report any damage you find to
c. Before dispensing lubricants, be sure to open the
condensate valves (5, fig. 2-2) to drain any collected
moisture from the lubricant pumps.
a. Be sure that you keep all moisture drained from
the trailer brake system air reservoir. Open the reser-
voir drains at least once every operating period to ex-
pel any collected water.
b. Weekly, check the level of brake fluid in the
master brake cylinder. To assure safe brake
operation, you must keep the reservoir full. Remove
the filler plug and fill with brake fluid as directed in
c. Daily, check tires for proper inflation, You must
maintain an air pressure of 50 psi.
U s e the tire chuck and gage provided
with t h e l u b r i c a t i n g a n d d i s p e n s i n g
u n i t t o check t i r e p r e s s u r e b e f o r e
towing the trailer.
d. Weekly, check tires for wear, cracks, cuts, im-
bedded stones or penetrating objects, or leaks. Report
dry the filter. Reassemble the parts as shown in
damage to organizational maintenance.
e. Weekly, check springs for broken leaves and
check shock absorbers for leaks. Report any damage
Maintenance of Trailer
to organizational maintenance.
f. Service the trailer brake system air filter as
Before you tow the lubricating and dispensing
unit in traffic, check that the lighting system is
(1) Daily, remove the end plug (1, fig. 3-6) to
operating properly when the unit is connected to the
drain the collected moisture from the filter.
towing vehicle. Check that brake lights, directional
(2) Weekly, remove the nut (2) and fiber washer
signals, tail lights, and running lights are all func-
(3), and remove the spring (4), washer (5), and filter
tioning. Report malfunction to organizational main-
(6) from the housing (7) and wash all metallic parts
with dry cleaning solvent (fed. spec. P-D-680). Shake