Light Tower Specifications
| Light type | 4 X 1250 Watt Metal Halide |
|---|
Troubleshooting
24Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Lamp(s) do not light up | Circuit breaker not switched to the "ON" position | Switch circuit breaker "ON" |
| Lamp(s) do not light up | Lamps appear to be broken, black or burnt | Replace lamps |
| Lamp(s) do not light up | Engine RPM incorrect | Re-set engine RPM (See Section 1.12) |
| Lamps flicker but fail to fully illuminate | Engine RPM incorrect | Check engine RPM (See Section 1.12); Re-set engine RPM (See Section 1.12) |
| Lamps fully illuminate but randomly quit working | Engine RPM incorrect | Check engine RPM (See Section 1.12); Re-set engine RPM (See Section 1.12) |
| Lamps do not function properly — input voltage to main circuit breaker not 120 V (± 10 %) per leg | Generator, generator capacitor or wiring from generator to main circuit breaker faulty | See Section 1.9 |
| Lamps do not function properly — output voltage from main circuit breaker not 120 V (± 10 %) per leg | Main circuit breaker faulty | Replace main circuit breaker |
| Lamps do not function properly — input voltage to each lamp circuit breaker not 120 V (±10%) | Wiring from main breaker damaged | Repair or replace wiring from main breaker |
| Lamps do not function properly — output voltage from each lamp circuit breaker not 120 V (±10%) | Lamp circuit breaker(s) faulty | Replace lamp circuit breaker(s) |
| Lamps do not function properly — input voltage to ballast capacitor(s) not 400 V (±10%) | Ballast transformer input/output voltages out of range or damaged wiring | Check wiring from lamp circuit breakers to ballast transformers; check output voltage from each ballast transformer and wiring to ballast capacitor; repair or replace damaged wiring |
| Lamps do not function properly — output voltage from ballast capacitor(s) not 400 V (±10%) | Ballast capacitor(s) faulty | Replace ballast capacitor(s) |
| Lamps do not function properly — tower wiring or light bar wiring damaged | Cuts or shorts in tower wiring; damaged wiring from light bar to lamp socket | Repair or replace damaged wiring |
| No voltage (or low voltage) to main circuit breaker — generator output not 120 V (±10%) per leg | Wiring from generator to main circuit breaker faulty | Repair or replace wiring from generator to main circuit breaker |
| No voltage (or low voltage) to main circuit breaker — generator capacitor test procedure indicates capacitor is not within spec | Generator capacitor faulty | Replace generator capacitor with new capacitor of same rating |
| No voltage (or low voltage) to main circuit breaker — generator capacitor within spec | Major generator fault | See service manual relative to specific generator make and model for major troubleshooting and testing procedures |
| Reading less than 120 Volts ± 10% at GFCI receptacle | Generator may be malfunctioning; problem with the main circuit breaker; pop-out receptacle circuit breaker; GFCI receptacle itself; or the wiring in between any of these | Refer to flowchart (Section 1.6) for further procedures |
| 120 Volts ±10% not measured at each top (input) terminal of main breaker | Generator, generator capacitor or wiring from generator to main circuit breaker is faulty | Refer to the troubleshooting flowchart (Section 1.6 forward) to further isolate the problem |
| 120 Volts ±10% not measured at each bottom (output) terminal of main breaker | Main breaker is faulty | Replace main breaker; contact Allmand Parts Department for correct replacement circuit breaker |
| Engine speed less than 62.0 Hertz at no load | Incorrectly adjusted engine governor | Adjust governor (Figure 1.12-B) until a reading of 62.0 HZ is indicated on the multimeter display |
| Engine speed less than 62.0 Hertz at no load | Clogged or dirty Air and/or Fuel Filters | Replace filters if there is any question as to their condition |
| Engine speed less than 62.0 Hertz at no load | Dirty fuel | Drain fuel tank and fuel system and replace with known clean fuel; replace Fuel Filter before re-starting the engine |
| Engine speed less than 62.0 Hertz at no load | Worn or damaged engine | Contact your local servicing dealer for the make and model diesel engine; repair, rebuild or replace as necessary |
| Capacitor test — meter shows a very high resistance that remains steady | Capacitor is open | Replace capacitor |
| Capacitor test — meter indicates a very low resistance that remains steady | Capacitor is shorted | Replace capacitor |
Fault codes and symptom→remedy steps extracted from this unit’s service/owner documentation; verify against the official manual before servicing.
Available documents
Service manual
About
Allmand Night-Lite PRO II — light tower. Specifications and parts compiled from manufacturer documents.