698 / 1525
48
ELECTRICALS
c.
‘ST’ contact ‘OFF’ - the supply to glow plugs is
cut off but then ‘IG’ contact will be ‘ON’. In case
second cranking is attempted without ‘IG’ going
‘OFF’, the glow plugs will again receive supply
as long as starter contact is ‘ON’.
To repeat steps a, b and c, ‘IG’ should be
disconnected.
d.
Glow plug timer can be checked by simple
method as shown in Fig. 53
Light-1 : Indicator light
Light-2 : Test light - Glow plug
SW1 : Ignition switch
OFF : Both lights will be off
ON : Both lights will be on
Light 1 will go off after 7 sec.
SW2 : Starting switch
ON : Light 2 will be on
OFF : Light 2 will be off
Fig. 52
LAMP MAX
1.4 W
GLOW PLUGS
BATTERY +VE
TER 1
IGNITION SWITCH
SHUNT
TO STARTER MOTOR SOLENOID RELAY
TIMING ELEMENT FOR PREGLOW CONTROL,
POST GLOW CONTROL & SAFETY SHUT OFF
TEMPERATURE
SENSOR (NTC)
PART NO. TBA
GROUND
TER 3 TER 4
TER 5
TER 6
TER 2
TER 7
ST
GPT
Fig. 53
02 0
S
GLOW PLUG TIMER
5
1
6 4 2 3 5
1
Light-2
1 1
-
BATTERY
2
SW1
3
4
2
7
6