TROUBLE-SHOOTING GUIDE
PROBLEM | PROBABLE CAUSE | CORRECTIVE ACTION |
I |
|
|
No power. | Battery cables corroded 1. Clean battery cable clamps and battery terminals. | |
| at battery terminals. | 2. Check voltage at points A and B. Voltage should be 22/26 VDC. |
| Faulty main switch. | 1. Check voltage at points B and C. Voltage should be 22/26 VDC. |
|
| 2. Turn main switch on and check voltage at points B and D. Voltage should be |
|
| 22/26 VDC. If no voltage remove leads and check switch for continuity. |
| Faulty safety override | With main switch “ON” check voltage at points B and G, and B and H. If no voltage |
| switch. | at B and H remove leads and check |
|
| tinuity in normal position and no continuity when switch is activated. |
Vacuum motor | Circuit breaker tripped. | Reset vac motor circuit breaker (20 amp). |
does not run. |
|
|
| Loose connection. |
| Faulty vac switch. |
| Faulty vac relay. |
| Faulty vac circuit |
| breaker. |
| Motor brushes worn. |
Brush motor | Circuit breaker tripped. |
does not run. |
|
| Loose connections. |
| Faulty brush switch. |
| Faulty brush relay. |
| Faulty brush circuit |
| breaker. |
| Motor brushes worn. |
Solution light | Loose connections. |
does not work. |
|
| Faulty solution light. |
| Light stays on with |
| solution lever in |
| “OFF” position. |
Battery charge | Loose connections. |
level lndlcator |
|
does not light. |
|
| Faulty PC Board or |
| faulty light. |
Check motor lead connections at terminals.
Remove leads and check switch for continuity. Replace as needed.
With main switch “ON” and vac switch “ON” check voltage at points B and I. Voltage should be 22/26 VDC.
With main switch “ON” and vac switch “ON” check voltage at points B and J. Voltage should be 22/26 VDC.
Check motor brushes. ReDlace when worn to 318”. With batteries fullv charaed and motor secured , apply ’battery voltage directly to motor. No load amp draw of motor should be 6.2 amps.
Reset circuit breaker.
Check motor leads at terminal block connections (located on inside front of frame). Tighten screws as needed.
Remove leads and check switch for continuity. Replace as needed.
With main switch “ON” and brush switch “ON” check voltage at points B and K. Voltage should be 22/26 VDC.
With main switch “ON” and brush switch “ON” check voltage at points B and L. Voltage should be 22/26 VDC.
Check motor brushes. Replace when worn to 3/8”. With batteries fully charged and motor secured, apply battery voltage directly to motor. No load amp draw of motor should be 6 to 8 amps.
Check for loose connections at solution light, solution switch and at vac fan relay ground.
Remove light and apply direct voltage (24 VDC) to light. Replace light as needed. Adjust solution light switch.
Check connections at battery card,
Check voltage into PC Board (point T). Voltage should be 22/26 VDC. Check voltage across first pin (from right) and eighth pin (from right) point U. Voltage should be 8/10 VDC. If voltage is 8/10 VDC replace battery charge level indicator light. If there is no voltage replace PC Board.
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