Isuzu NPR 4J Series User Manual

QOSII PREHEATING SYSTEM 6D6 – 1
SECTION 6D6
QOSII PREHEATING SYSTEM
(4JB1/4JB1T/4JB1TC ONLY)
CONTENTS
PAGE
General Description....................................................................................................... 6D6 - 1
System Diagram............................................................................................................. 6D6 -2
Inspection on QOS II system Operation ...................................................................... 6D6 - 3
QOSII System Troubleshooting.................................................................................... 6D6 - 4
GENERAL DESCRIPTION
QOS II preheating system features a quick-on glow
plug with thermometer control of the glowing time and
the afterglow time function.
The system consists of a controller, indicator lamp,
thermoswitch, relay, and glow plug ( 4 pcs).
With the employment of the thermoswitch, the glow
time changes according to the engine coolant
temperature, thus allowing optimum starting conditions
to be obtained.

Isuzu NPR 4J Series Specifications

General

Brand	Isuzu
Model	NPR 4J Series
Category	Engine
Language	English