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Page Title:
DIESEL GLOW PLUG SYSTEM MAINTENANCE. |
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 TM5-4210-224-14&P
4-108. DIESEL GLOW PLUG SYSTEM MAINTENANCE.
This task covers:
a. Removal
b. Test
c. Inspection
d. Installation
INITIAL SETUP :
Materials/Parts
Glow Plug (5613738)
TEST EQUIPMENT
General Safety Instructions
12 Volt Test Light
Engine OFF
Tools
Transmission in (N) neutral.
General Mechanics Tool Kit
Parking brake and micro-brakelock set.
Batteries disconnected.
REMOVAL
a.
Disconnect the plug (1) from the wire
connector.
b.
Unscrew the plug (1).
INSPECTION
a.
Check the glow plugs (1).
b.
Check all connectors in the glow plug
electrical system.
c.
Check the engine harness ground connection
to engine and torque the nut to 8 ft-lbs (11 N-
m).
g.
Check the glow plug lamp on the instrument
panel for tight connection and operation.
d.
Check the four-wire connector at controller to
be sure it is fully seated and latched.
TESTING
e.
Check both controller copper stud upper nuts
A normal functioning system operates as follows:
and be sure they are torqued to 48 in-lbs (5
N-m).
a.
Key on - Engine not running and at ambient
temperature.
NOTE
(1) Glow plugs ON for 4 to 6 seconds, then
OFF for about 4.5 seconds.
Do not tighten lower nuts.
(2) Then cycle; ON for about 1. 5 seconds,
f.
Check the temperature switch connectors at
OFF for about 4.
5 seconds, and
the
top
rear
right
cylinder
head.
continue to cycle 1. 5 ON/4. 5 OFF, for
a total duration (including the initial 4 to 6
seconds) of about 20 seconds.
4-150
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