6-14 Z Master 597 Diesel Series Service Manual
6
ELECTRICAL
Step 1 Testing the “timed” output in the “run”
position (Fig. 367).
A. Set VOM to read K ohms.
B. Connect the red lead to terminal “A” of
the glow plug timer.
C. Connect the black lead to the negative
terminal of the battery.
D. Connect a jumper lead from terminal “D”
of the timer to the negative terminal of
the battery.
E. Connect a jumper lead from terminal “B”
of the timer to the positive terminal of
the battery. The meter should hold at a
constant continuity reading. The timer is
reactivated in a continuous mode as the
machine is being started.
A. Set VOM to read continuity in K ohms.
B. Connect the red lead to referenced
terminal “A” of the glow plug timer.
C. Connect the negative lead to the
negative terminal of the battery.
D. Connect a jumper lead from terminal “D”
of the timer to the negative terminal of
the battery.
E. Connect terminal “C” of the timer to
the positive terminal of the battery and
watch the meter. The meter should read
continuity then increasing resistance
until it reads “open”. The timeframe
should be approximately 10 seconds
from reading continuity to reading
“open”.
Step 2 Testing continuous output in the “START”
position (Fig. 368).
set for K
BLACK
RED
Fig 367 glow plug timer test 2
set for K
BLACK
RED
Fig 368 glow plug timer test 3
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