Yale 524150797 Maintenance Manual page 46

Troubleshooting
CORRECT
REPLACE BATTERY. CONTACT BATTERY
VENDOR
Note: Occasionally, a battery failure will occur due to thermally induced
stress. Since this type of defect does not occur until the battery has
operated under a full loaded condition, for several minutes or hours, it may
be required to monitor the discharge cycle.
20
Table 2. BATTERY TROUBLESHOOTING GUIDE (Continued)
MORE THAN .05 VOLTS
|
↓
——
LOCATE PROBLEM CELL OR CELLS.
|
CHECK ELECTROLYTE
↓
|
↓
———→
BATTERY IS IN GOOD CONDITION
DURING TESTING (POWER STEERING
MOTOR RUNNING)
——
| BATTERY IS IN GOOD CONDITION
↓
INCORRECT
|
↓
RE-DO TEST OBJECTIVES
1, 2 AND 3
|
|
CORRECT
|
↓
—————→
CHECK FOR SHORTED CONDITION TO POWER
CABLES - USING THE VOLT/OHMMETER DC + 10,000
SCALE. ONE LEAD TO BATTERY CABLE RECEPTACLE
—— (NOT BATTERY SIDE) TO TRUCK FRAME. READING
SHOULD BE 30,000 OHMS OR HIGHER - FOR EACH
|
|
|
↓
LESS THAN 30,000 0HMS
|
↓
CHECK ALL POWER CABLES AND
DIRECTIONAL CONTACTORS FOR
POSSIBLE CARBON BUILD-UP IN DRIVE
MOTOR
TO CHECK FOR SHORTED CONDITION IN TRUCK WIRING SIDE,
PLACE VOLT/OHMMETER ON RX 1 SCALE, CONNECTING POS./NEG.
METER LEADS ACROSS TRUCK SIDE BATTERY RECEPTACLE (SW.
LESS THAN 30 0HMS
CHECK FOR SHORTED
CONDITIONS IN TRUCK
FOR ADDITIONAL INFORMATION CONTACT NACCO SERVICE HELP
LESS THAN .05 VOLTS
|
↓
|
|
|
|
|
|
|
|
|
|
|
↓
5
SHORTED CONDITION TO POWER
CABLES / TRUCK WIRING TEST
|
↓
CABLE
POWER CABLES ARE GOOD
TRUCK SIDE WIRING TEST
OFF). READING SHOULD BE LESS THAN 30 0HMS
|
|
MORE THAN 30 0HMS
|
↓
MORE THAN 30 OHMS
READING INDICATES THAT
THERE IS NO PROBLEM
WIRING
WITHIN TRUCK WIRING
|
↓
DESK
2240 YRM 0001
——
|
|
|
↓
MORE THAN 30 0HMS
|
↓
|
↓
|
↓
|
|
|
↓
|
↓