Apply thread sealant to threads of cold start temperature switch (14, Figure 2-2-6), and install cold start
temperature switch (14) in tee at top front center of cylinder head.
Install atomizer (13) in engine air inlet tube. Ensure atomizer port is directed toward incoming air (red dot
on fitting indicates position of port).
Connect tube (5) to atomizer (13) and route tube (5) to cold start valve assembly (9) mounting area.
Install valve assembly (9) with washers (8), lockwashers (7), and capscrews (6).
Always replace gasket (4) when installing a new fluid cylinder (3). Gasket
comes with cylinder.
Spread a light film of clean engine oil on gasket (4) and threads of cylinder (3).
Position gasket (4) in valve (9) and screw cylinder (3) into valve until o-ring on cylinder contacts valve.
Then tighten cylinder 1-1/2 additional turns.
Tighten clamp (1) and connect valve electrical connector to engine harness.
Allow contents of cylinder to settle for approximately 15 to 20 minutes before
testing or activating cold start system. Failure to allow contents to settle may
cause premature clogging of system necessitating cleaning or replacement of
filter at valve outlet port.
Disconnect electrical connector for fuel shutoff solenoid (refer to TM 5-3810-307-24-2-1, page A-33),
position battery disconnect switch to on position, and actuate cold start valve by positioning ignition switch to
START. This will purge any debris that did not settle from valve.
If ambient temperature is above 45F (7C) it will be necessary to "hot-wire"
the system in order to actuate the valve.
This is accomplished by
disconnecting the cold start temperature switch from the engine harness and
connecting a jumper wire across terminals of the engine harness connector,
refer to Detail A. Remember to remove jumper wire and connect temperature
switch when finished.
Position ignition switch to OFF, place battery disconnect switch to off position, and connect fuel shutoff
If jumper wire was used, remove jumper wire and connect electrical connector for temperature switch.
The metered orifice elbow (10) fitting that threads into the bottom of valve
assembly (9) has left-hand threads.
Position o-ring (12) and filter (11) in metered orifice elbow (10) and install elbow (10) in valve assembly (9).