TM 5-3895-385-23-1
0101
Table 1. Screed Electric Heater Malfunction Troubleshooting Procedures -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
6. Push button malfunction.
1. Press and hold down the push
button (WP 0447, Vol 3, Figure
11).
2. Measure continuity (WP 0443,
1. If continuity is present, proceed
Vol 3) between post 1 and post 2
to malfunction 10.
on the push button (WP 0447,
Vol 3, Figure 11).
2. If continuity is not present,
replace push button (WP 0243,
Vol 2).
7. Relay malfunction.
1. Start BMPM engine (TM 5-3895-
385-10).
2. Turn on screed electric heat box
(TM 5-3895-385-10).
3. Measure voltage (WP 0443, Vol
1. If voltage reads a minimum of
3) from one white wire on one
210 VAC at each relay wire, turn
breaker to each black wire on
keyless engine switch to the
each relay (WP 0447, Vol 3,
OFF position (TM 5-3895-385-
Figure 8).
10), restore equipment to
original condition, and proceed
to next malfunction.
2. If voltage reads a minimum of
210 VAC on at least one relay
wire but outside of 210 and 240
VAC on any other relay, turn
keyless engine switch to the
OFF position (TM 5-3895-385-
10), and replace relay(s) that
measured outside of 210 and
240 VAC (WP 0243, Vol 2).
3. If voltage reads below 210 and
240 VAC on each relay, turn
keyless engine switch to the
OFF position (TM 5-3895-385-
10), and proceed to malfunction
10.
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