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Table 2-2. TROUBLESHOOTING (CONTINUED) | Up
TM-9-6115-464-34 Generator Set Diesel Engine Driven Tactical Skid Mtd 15 Kw 3 Phase 4 Wire 120/208 and 240/416 Volts Manual | Next
FREQUENCY DRlFTS |
ARMY TM 9-6115-464-34
AIR FORCE 35C2-3-445-2
NAVY NAVFAC P-8-624-34
Table 2-2. TROUBLESHOOTING (CONTINUED)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 2. Loose electrical connection (figure 3-130).
Check and tighten electrical connection.
19. POOR VOLTAGE REGULATION.
Step 1. Operations switch set to parallel operation.
Place switch to single unit position (para. 3-59).
Step 2. Defective voltage regulator (figure 3-130).
Repair voltage regulator assembly (para. 3-92).
Step 3. Defective current transformer CT4, CT5 OR CT6 (figure 3-108).
Replace current transformer assembly (para. 3-86).
20. GENERATORS DO NOT PARALLEL PROPERLY.
Step 1. Governor control unit defective or out of adjustment (Precise).
Align or replace governor control unit (para. 3-64, elecro–hydraulic governor, or 3-65,
electric governor equipped precise sets).
Step 2. Improper speed droop or voltage droop adjustment (Utility).
Check and adjust voltage and speed droop as necessary (para. 3-22).
21. FREQUENCY METER DOES NOT REGISTER.
Step 1. Defective control cubicle wiring harness assembly (figure 3-59).
Repair or replace control cubicle wiring harness assembly (para. 3-59).
Step 2. Defective frequency converter or frequency meter.
Test or replace frequency converter and frequency meter (para. 3-59).
22. AC AMMETER FAILS TO REGISTER.
Step 1. Defective control cubicle wiring harness assemlby (figure 3-59).
Repair or replace control cubicle wiring harness assembly (para 3-59).
Step 2. Defective volts–amps transfer switch.
Replace volts-amp transfer switch (para. 3-59).
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