TM 10-1670-296-20&P 0021 00
0021 00-4
3. Repair toggle and keys as follows:
a.
Remove the four screws that hold the back cover of the delay assembly. Carefully remove cover,
toggle, and keys from the housing.
b.
Thoroughly brush foreign material away from the toggle and keys and from the surfaces from which
the toggle keys were removed. If the parts are rusty, corroded, pitted, or marks are present where
the toggle has rubbed up against the channel in which the keys slide, replace the delay assembly,
toggle or keys with a serviceable one from stock.
CAUTION
Do not use steel wool or a wire brush to clean, as these will damage the
permanent dry film lubricant that was applied to the key-way surfaces
when they were manufactured.
c.
Clean housing cover with brush.
d.
Insert the short key onto the timer actuator pin, into its slot with its pin facing outward.
e.
Insert the longest key into its slot, also with its pin facing outward.
f.
Adjust the two installed keys so that their pins are aligned with the pin in the housing and install the
toggle over all three pins.
g.
Check to see that the short key is properly located onto the timer’s spring-loaded actuator pin (6) and
that the toggle is located onto all three pins in line.
NOTE
The interlock pin must be down before the timer can be armed.
h.
Replace housing cover over keys with countersunk holes facing outward and rounded corners along
outer edge of timer housing. Check for alignment of holes and install four screws carefully. Do not
over-tighten screws.
i.
Turn timer stem ¼ turn to right and check if keys extend from each side of housing. Release stem
and allow the timer to run down, making sure that the keys retract at the end when the timer runs
down.
NOTE
The interlock pin must be down before the timer can be armed.
REPLACE
1. Replace an unserviceable M-2 airdrop cargo parachute release with a serviceable item from stock.
