 |
|||
|
|
|||
|
Page Title:
TABLE 6-2. TROUBLESHOOTING - continued |
|
||
| ||||||||||
|
|
 TABLE 6-2. TROUBLESHOOTING (Cont'd)
STEP
PROCEDURE
CORRECTIVE ACTION
Electrical (Cont'd)
4. No reverse motion.
a.
R relay fails to
a. With truck wheels off
pick-up.
floor, make following
checks:
(1) Check R relay coil
for continuity. Re-
place if relay is
defective.
(2) Directional switch.
Check for closed
REV contacts. Ad-
just or replace as
required.
(3) Check for shorted
suppressor circuit
between terminals
7 and 4 of 3SP.
Replace 3SP if
defective.
5. Truck operates at full
With battery cable dis-
speeds at low speed
connected, make follow-
settings.
ing checks:
a.
Shorting contactor ISC
a. Check for welded SC re-
relay.
lay contacts. Replace
relay if contacts are
damaged.
b.
Turn on 2SCR.
b. Check diode. Replace
if defective.
c.
Turn off ISCR.
c. Check diode. Replace
if defective.
d.
Shorted speed
d. Check with ohmmeter.
potentiometer.
replace if defective.
6. Truck wheels turn
a.
SC relay fails to
a. With drive wheels of
at 75% of maximum
pick up.
truck off floor, check
following:
(1) Shorted speed
potentiometer.
Check with ohm-
meter. Replace if
defective.
(2) Defective ICP or 2CP
module. Check in ac-
cordance with manu-
facturers' recommen-
dations. Replace de-
fective CP module.
6-7
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals