SHAFT ASSEM. (R. H. - 20 Teeth) 4N7977 - Caterpillar

Table 1
GENERATOR START-UP CHECKLIST
RATING INFORMATION
Engine Serial Number: ___________________________________ Arrangement Number: ___________________
Generator Serial Number: _________________________________ Arrangement Number: ___________________
Gearbox Serial Number: _________________________________
GENERATOR NAME PLATE INFORMATION
Voltage: ___________________ Package (prime, continuous, standby): _________________
Amperage: _________________ Kilowatts: ________________________________________
Storage Location:
Generator and Gearbox Alignment:
Main Stator Megohmmeter Reading: Before Storage: After Storage:
Generator dried for 24 hours prior to start-up? (Y/N) Drying method:
HEATERS Yes No Comments
Space heaters operating properly?
Gearbox oil heater is operating properly? (If Equipped)
Gearbox oil temperature above 10° C (50° F) before start-up?
Utilizing Cat Synthetic Compactor Oil.
Gearbox oil temperature above 10° C (50° F) before start-up?
Utilizing Cat NGEO Advanced 40 Oil.
Space heater operated 48 hrs. before start-up?
MEGOHMMETER TEST (SEHS9124) 30 sec. reading 60 sec. reading 30 sec. corrected 60 sec. corrected Ambient temp. Comments
Beginning of Storage Main Stator
Main Rotor
Exciter Stator
Exciter Rotor
PMG Stator
Start-up Main Stator
Main Rotor
Exciter Stator
Exciter Rotor
PMG Stator
Regulator Voltage Amps Comments
No Load F1 to F2 DC
20 to 22 AC
20 to 24 AC
22 to 24 AC
26 to 28 AC
26 to 30 AC
28 to 30 AC
Full Load Generator Excitation Name Plate Information: DC Compare with F1 to F2
F1 to F2 DC
20 to 22 AC
20 to 24 AC
22 to 24 AC
26 to 28 AC
26 to 30 AC
28 to 30 AC
Table 2
GENERATOR START-UP CHECKLIST (CONT.)
ELECTRICAL Yes No Comments
Unit properly grounded
Check diodes
Over current protection
Over voltage protection
Check for loose wiring
Adjust voltage
Adjust frequency
MECHANICAL Data Comments
Bearing temperature readings at full load Front __________ Rear ___________
Stator temperature readings at full load A0 _______ B0 _______ C0 _______
Air gap on main stator Top __________ Bottom __________
Air gap on exciter stator Top __________ Bottom __________
Air gap of PMG Top __________ Bottom __________
Ambient air to generator at full load Temperature ____________________
Supplier air opening to generator Size of Opening _________________
SWITCH GEAR/PARALLEL OPERATION
Manufacturer:
Setting 1 Setting 2 Setting 3 Comments
Circuit breaker type
Overload setting
Reverse power relay
VAR/PF Controller
Load share
INSTALLATION & LOAD INFORMATION
Neutral grounding system UPS
Enclosure type Size
Motor: Other loads:
- Total SKVA - Lighting
- Total HP - Computers
- Welding
- Non-linear
- Other
FULL LOAD DATA
Voltage Amps kW KVARS P.F.