TM-9-6920-430-14
COOLANT RECHARGING UNIT, TRAINING GUIDED MISSILE SYSTEM M80 AND CHARGER, BATTERY PP-7309/T
TECHNICAL MANUAL; OPERATOR’S AND ORGANIZATIONAL DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL
AUGUST 1980
TM-9-6920-430-14 - Page 70 of 180
TM 9-6920-430-14
Table 3-1. Gas Pumping Unit (GPU) and Battery Charger Preventive
Maintenance Checks and Services (Continued)
B – BEFORE OPERATION D – DURING OPERATION A – AFTER OPERATION M – MONTHLY
ITEM
NO.
10
11
11.1
INTERVAL
B
D
A
M
PROCEDURE
CHECK DATE OF LOGBOOK DATA
ON GPU. IT MUST NOT EXCEED
6 MONTH PROOF TEST.
CHECK LOG BOOK TO DETERMINE
WHEN LUBRICATION WAS LAST
PERFORMED ON DRIVE MECH-
AN ISM. CHECK RUNNING TIME
INDICATOR.
CORRECTIVE ACTION
IF MORE THAN SIX MONTHS PROOF
TEST GPU (PARA. 3-6 THRU 3-9).
IF OVER 150 HOURS HAVE
ELAPSED, OR AS REQUIRED, OPEN
THE REAR ACCESS DOOR AND
PERFORM THE FOLLOWING
OPERATION.
1. USING OIL CAN WITH SAE
NUMBER 10 OIL,
SQUIRT SOME
DROPS ONTO POSITION ROD
AND PIN (13).
CHECK BOTTOM OF WELL AREA
(13b) FOR PRESENCE OF OIL (THIN
FILM OF OIL ON PISTON ROD IS
NORMAL)
REMOVE HOUSING ENCLOSURE
PER INSTRUCTIONS IN PARA.
3-18 (PAGE 3-76). ADJUST THE
PACKING GLAND NUT (13a) USING
A 1-1/8-INCH OPEN END WRENCH.
TIGHTEN THE PACKING GLAND
NUT UNTIL A SLIGHT PRESSURE
IS FELT AGAINST THE PACKING.
DO NOT OVERTIGHTEN.
M1416950B
3-10
Change 3
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