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 TM 55-1905-220-14-6
3-165.2. EXHAUST VALVE - MAINTENANCE INSTRUCTIONS (Continued).
LOCATION
ITEM
ACTION
REMARKS
ADJUSTMENT (Cont)
A complete valve bridge
adjustment is performed
as follows:
a. Place the valve
bridge (8) in a
vise and loosen
the locknut (9)
on the bridge ad-
justing screw (7).
CAUTION
Loosening or tightening the locknut with the bridge in place may result in
a bent bridge guide or bent rear valve stem.
b. Install in the valve
bridge (1) on the
valve bridge guide (6).
c. While firmly pressing
straight down on the
pallet surface of the
valve bridge (8), turn
the adjusting screw (7)
clockwise until it just
touches the valve stem.
Then, turn the screw an
additional 1/8 to 1/4
turn clockwise and
tighten the lock nut
(9) finger tight.
d. Remove valve bridge
(1) and place in a
vise. Use a screw-
driver to keep the
adjustment screw (7)
from turning and
tighten the locknut
(9) to 20-25 lb.ft.
(27-34 Nm) torque.
3-2772
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