TM-5-4310-389-14
l.
Check all gauges for proper operation of engine and compressor. See paragraph 2-2.
m.
Approximately every 15 minutes, the condensate drain switch must be manually depressed for 5 to 6 seconds to
remove condensate from the separators. In high humidity and temperature conditions, the condensate must be
drained every 10 minutes.
n.
Do not operate the K-20 unit if ambient temperature exceeds 125'F (52'C).
2-10 START-UP PROCEDURE (MANUAL).
CAUTION
This procedure should be used only when the battery is extremely low or
dead or when the alternator is not producing voltage. This procedure
eliminates all compressor and engine safety devices and should only be
used in emergency situations and with the approval of the diving
supervisor and dive officer.
a.
Manual Start (Battery Low or Dead and Alternator Producing Voltage).
1.
Place crank bungie cord from run solenoid to muffler guard.
2.
Turn throttle two turns counterclockwise from the IDLE position, then turn starter switch to RUN.
3.
Turn decompressor lever (1) counterclockwise until it stops (figure 2-6).
4.
Place crank in crank hole and turn counterclockwise (engine will turn freely approximately six turns before
compression) (figure 2-7).
5.
With engine running, check ammeter for a positive reading (if ammeter does not have a positive reading, go
to step 2 in Manual Start (with Battery Dead and Alternator Not Producing Voltage).
6.
Allow warm-up, bring throttle to full speed, and engage clutch.
7.
Push relay latch in and ensure safety bypass is in the OFF position.
8.
Release bungie cord (engine should continue to run and all safety devices are functional when the bungie
cord is released; alternator should also recharge battery).
9.
Shut down in accordance with paragraph 2-11.
2-11
