Perkins 4012TESI Series, Руководство пользователя, Страница: 29 / 57

OPERATING INSTRUCTIONS
4012/16 Gas, February 1998 25
FINAL CHECKS AND INITIAL STARTUP
Gas supply train must comply with British
gas Code IM17.
See Fig. 1 page 16 in the
Workshop Manual . Also gas pipework up to
the solenoid operated valves must be tested
at twice working pressure to ensure gas
tightness and any leaks rectified.
1. Starting and stopping must be on no
load.
2. For automatic start and stop sequence
see Fig. 14 on page 27 .
3. Starting (manual)
3.1) Turn on gas at manual valve.
3.2) Press start button/turn ignition
key.
3.3) Governor now energised.
3.4) Starter engages, starts to crank.
Automatic 3 second purge time
determined by control panel.
3.5) Ignition on, gas solenoid valves
open.
3.6) Engine starts, starter disengages,
runs up to rated speed.
3.6.1) If engine fails to start, investigate
the following probable causes:
a) High or low gas pressure.
b) Ignition system grounded.
c) Governor failed to energise.
d) Low cranking speed.
3.6.2) Try again once more only
commencing with 3.2 above.
3.7) When engine is running, check oil
pressure, warm engine through
and apply the load.
3.8) Check engine condition at full
load, oil pressure, jacket coolant
and
charge air coolant
temperatures.
IMPROPER
OPERATION OF A
GAS ENGINE CAN BE DANGERHOUS.
BE PREPARED TO CHECK FOR GAS
LEAKS AFTER THE SOLENOID VALVES
AS SOON AS THE ENGINE STARTS,
USING A LEAK DETECTING FLUID.
STOP THE ENGINE AND RECTIFY ANY
LEAK FOUND.
WARNING
IF THE ENGINE
FAILS TO START
AFTER TWO ATTEMPTS, TURN OFF
THE GAS SUPPLY AND INVESTIGATE
THE CAUSE. BEFORE ATTEMPTING
TO RESTART THE ENGINE IT MUST
BE PURGED OF GAS. TO DO THIS,
WITH THE GAS SUPPLY AND THE
IGNITION SYSTEM TURNED OFF,
CRANK THE ENGINE WITH THE
STARTER FOR NO MORE THAN 30
SECONDS. THIS SHOULD REMOVE
ANY BUILD-UP OF GAS FROM THE
ENGINE AND EXHAUST SYSTEM.
ALTERNATIVELY THE SYSTEM MAY
BE PURGED WITH COMPRESSED
AIR. ALWAYS BE IN A POSITION TO
STOP THE ENGINE IN THE EVENT OF
A MALFUNCTION BY TURNING OFF
THE GAS SUPPLY OR IN AN
EMERGENCY BY PRESSING THE
RED BUTTON, WHICH REMAINS OFF
UNTIL RESET.
WARNING