TM 5-3805-281-24-1
Operational Checkout Procedure
ENGINE RPM DIAL
A--Engine RPM Dial
YES: Go to next check.
CHECKS
Start engine.
NO: Check dial and
wiring harness. Go to
Auto-idle switch OFF.
Group 9015-15. If OK,
check for control signal to
9005
Pilot shut-off lever in LOCKED position.
EC motor. Go to harness
10
test in Group 9025-25.
7
Check that cable from EC
Turn engine rpm dial (A) clockwise.
motor to injection pump
lever moves freely. Go to
Does engine speed increase?
Group 0515.
Turn engine rpm dial counterclockwise.
Does engine speed decrease?
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AUTO-IDLE CIRCUIT
A--Auto-Idle Switch
YES: Go to next check.
CHECK
B--Auto-Idle Indicator
NO: Check fuse. Check
Engine at fast idle.
switches and wiring
harness. Go to Group
HP (High Power) and E (Economy) mode switches OFF.
9015-15.
Auto-idle switch OFF.
Pilot shut-off lever in UNLOCKED position.
Push auto-idle switch (A) to ON.
Does auto-idle indicator (B) come on?
Does engine speed decrease after 4--6 seconds?
Slowly actuate any dig function control lever.
Does engine speed return to fast idle?
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