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 ELECTRIC PROTECTIVE SYSTEM
SYSTEMS OPERATION
ELECTRIC PROTECTIVE SYSTEM FUNCTIONAL TEST
These tests are to be performed on an engine that is started for the first time
and at recommended check intervals. They consist of quick and easy procedures
for each system that can immediately identify if there is a problem in that system
with a minimum amount of test time. If a problem is found, go to the correct chart
of the more specific troubleshooting procedures.
Check each system of the engine as shown to verify if all components of the
shut-off system works properly. To find the correct engine speed, make reference
to SPEED SPECIFICATION CHART.
TEST I. OVERSPEED (AIR AND FUEL SHUTOFF)
STEP
RUN ENGINE AT:
ACTION
CORRECT RESULT
A.
25 + 5 rpm Less Than
Press 75% Verify
No Engine
Verify rpm (75% Overspeed)
Button
Shutdown
B.
25 + 5 rpm More Than
Press 75% Verify
Air and Fuel
Verify rpm (75% Overspeed)
Button
Shut-off
C.
Manually Reset Air Shut-off Lever At Top Of Air Inlet Housing and Press ESS Reset Button.
TEST II. NORMAL SHUTOFF SWITCH (FUEL SHUTOFF ONLY)
STEP
RUN ENGINE AT:
ACTION
CORRECT RESULT
A.
Any Speed Above
Push Shut-off Switch
Fuel Shut-off
Crank Terminate rpm
To OFF Position
TEST III. OIL PRESSURE (FUEL SHUTOFF ONLY)
STEP
RUN ENGINE AT:
ACTION
CORRECT
RESULT
A.
25 + 5 rpm Less Than Oil
Put Jumper Across
No Engine
Step Speed
Terminal 1 & Terminal
Shutdown
2 of Oil Pressure
Switch OPS2
B.
Remove OPS2
---
Jumper
-----
C.
Same Speed as Step A
Put Jumper Across
Fuel Shut-off
After 9
Terminal 1 & Terminal
+ 1 Seconds
3 of Oil Pressure
sure Switch OPS1
D.
----
Remove Jumper
-----
From OPSI
E.
25 + 5 rpm More Than Oil
After 9 Seconds,
Fuel Shut-off
Step Speed
Put Jumper Across
Terminal 1 and Terminal
2 (OPS2)
F.
Remove Jumper From OPS2 Terminals 1 and 2
TEST IV. WATER TEMPERATURE (FUEL SHUTOFF ONLY)
STEP
RUN ENGINE AT:
ACTION
CORRECT
RESULT
A.
Any Speed Above
Put Jumper Across
Fuel Shut-off
Crank Terminate rpm
Terminals TS11 &
TS 22
B.
Remove Jumper From Terminals TS11 and TS 22
536
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