TM 5-3655-210-12
Malfunction
Malfunction
Test or Inspection
Test or Inspection
Corrective Action
Corrective Action
Step 2. Inspect for leakage from gage line panel liquid supply
Wash out with solvent (Fed. Spec. P-D-680 or P-
S-661).
piping (water seepage).
Step 2. Check for the clutch slipping (observe delayed
Tighten until leakage stops.
Step 3. Check for a too tight piston rod packing gland (won't
operating and noise).
Adjust clutch as follows:
loosen normally).
Loosen packing gland.
adjustment nut (12).
17. Counter Shaft Clutches Slipping
b. Release the clutch as far as possible.
c. Unscrew the adjusting nut (12) until the
is tightened to a 1/8 turn.
Readjust the clutch as follows:
clutch can easily be engaged.
a. Loosen the setscrew (11, fig. 4-16 in
d Turn the adjusting nut (12) clockwise as far
the adjustment nut (12).
as possible by hand.
b. Release the clutch as far as possible.
Release the clutch and tighten the
e.
c. Unscrew the adjusting nut (12) until
adjusting nut 1/8 turn.
the clutch can easily be engaged. & Turn
f. Secure the adjusting screw in this position
the adjusting nut (12) clockwise as far as
with the setscrew (11, fig. 4-16).
possible by hand.
NOTE
e. Release the clutch and tighten the
If the clutch shows a tendency to slip when load is
adjusting nut 1/8 turn.
applied, tighten adjusting nut as above until there
f. Secure the adjusting screw in this
is no slippage.
19.Lack Of Spark In Conversion Heater
position with the setscrew (11, fig. 4-16).
Step 1. Visually inspect contact points worn for %Pull
NOTE
vibrator switch or replace vibrator as follows:
If the clutch shows a tendency to slip when load is
The vibrator (28, fig. 4-19) has two sets of
applied, tighten adjusting nut as above until there is
contact points. The switch (32) is safety wired at
no slippage.
the factory. If the vibrator inoperative and the
Step 2. Visually check to see if there is lubricant between
switch is still wired, cut the wire and pull the
switch out. If the lockwire (33) has been cut, the
clutch disk plates.
switch pulled out and the vibrator is inoperative,
WARNING
install a new as follows:
Dry cleaning solvent, P-D-680 or P-S661, used
a. Unplug the disconnect plug (31).
to clean parts is potentially dangerous to
b. Loosen the thumbscrew (27) and push
personnel and property. Use in a well-
the bail downward.
ventilated area as the fumes are dangerous if
c. Pull the vibrator (28) from the ignition
inhaled. Avoid repeated and prolonged skin
unit (3).
contact. Do not use near open flame or
d. Push the switch (3?) in, and secure
excessive heat. Flash point of solvent is
with the lockwire (33).
.100F.-138F. (38C.-
e. Position the new vibrator (28, fig. 4-
Clean disks with solvent (Fed. Spec. P-D-
19) in the ignition unit (3) and secure
680 or P-D-661.
with the bail and thumbscrew (27).
18. Clutch Running Hot
f. Plug in the disconnect plug (31).
Step 1. Visually check or observe feel indicating a drag
Step 2. Visually check for a dirt) or cracked spark plug.
between clutch disk plates.
Clean plug or replace it as follows:
WARNING
Dry cleaning solvent, P-D-680 or P-S661, used
to clean parts is potentially dangerous to
4-20) by loosening tie nut (20).
personnel and property. Use in a well-
c. Unscrew the two tube nuts (14) securing
ventilated area as the fumes are dangerous if
the fuel tube (17) and remove the tube.
inhaled. Avoid repeated and prolonged skin
d. Remove the three capscrews (7) and
contact. Do not use near open flame or
lockwashers securing the combustion head
excessive heat. Flash point of solvent is
(6) and gasket to the heater assembly and lift
100F.-138F. (38C.-59C.).
off the head and gasket.
Step 3 Check for broken wiring and cracked ignition unit.
Replace wiring or ignition unit (para. 4-114).
20. Lack of Fuel At Conversion Heater
Step 1. Check for a clogged nozzle tip.
4-19
