TM 10-1670-296-20&P 0023 00
UNIT MAINTENANCE
ANCILLARY EQUIPMENT FOR LOW VELOCITY AIR DROP SYSTEMS (LVADS)
TIMER DELAY ASSEMBLY
0023 00-1
THIS TASK COVERS:
Inspect
Repair
Replace
Tools
Screwdriver, Cross-Tip, No.1 (Item 27, WP 0064 00)
Screwdriver, Flat-Tip, 3/16 -IN. (Item 30, WP 0064 00)
Materials/Parts
Crocus Cloth (Item 9, WP 0125 00)
Timer Delay Assembly (Item 1, WP 0076 00)
Personnel Required
92R (10) Parachute Rigger
Equipment Condition
Removed from the M-2 cargo
parachute release assembly.
References
WP 0005 00; WP 0079 00
INSPECT
1. Inspect the timer delay assembly in accordance with WP 0005 00, using the procedures in Table 1.
2. Check the timer delay.
a.
With a screwdriver, turn stem (1) ¼ turn to the right, as if arming in the release assembly, and let the
time run down.
NOTE
The interlock pin must be down before timer can be armed.
b.
If the time sequence is delayed in any way, check if the stem is binding on the mounting block. If so,
loosen three screws and slightly move timer and stem assembly to remove binding. When free,
retighten screws and recheck as in step a., above.
c.
Install mounting block with timer and stem assembly, making sure that the retraction pin goes into
the hole in the key on the inside of the housing. (Ends of keys (2) must be retracted or even with the
outside of the housing.) To check the retraction pin, again arm timer and stem assembly by turning
the stem ¼ turn to the right and checking if the keys extend from the housing on each end. Release
the stem and allow the timer to run down, making sure that keys (2) retract when the timer runs
down.
REPAIR
1. Disassemble timer delay assembly.
