Caterpillar HV Generator SR-4

Lubricate bearings in accordance with the lubricating instructions on the nameplate of the generator

Lubricate Split Roller Bearings of HV Generators - 2900 Frame

Enter the number of shots from a grease gun used for replenishment

Type of grease used for replenishment

Was the protective paper removed from a new bearing?

Was the protective grease coat removed in a parts washer and rinsed with clean solvent?

Was a sufficient amount used to coat the roller bearing?

- Remove generator outlet box cover. Visually inspect stator output leads

- Visually inspect stator output leads, protective sleeving and insulation for cracking or physical damage. (Same as 7500/9000 hour check)

- Check all exposed electrical connections for tightness

- Check transformers, fuses, capacitors and lightning arrestors for loose mounting or physical damage

- Check all lead wires and electrical connections for proper clearance and spacing

- Check insulation resistance to ground on all generator windings

C. Exciter and PMG stationary fields

- Remove generator outlet box cover. Visually inspect stator output leads

- Visually inspect stator output leads, protective sleeving and insulation for cracking or physical damage. (Same as 7500/9000 hour check)

- Check all exposed electrical connections for tightness

- Check transformers, fuses, capacitors and lightning arrestors for loose mounting or physical damage

- Check all lead wires and electrical connections for proper clearance and spacing

- Check insulation resistance to ground on all generator windings

C. Exciter and PMG stationary fields

Operating temperatures on generator bearings

Operating temperatures on generator stator windings

Control panel voltmeter for proper stability and voltage output

Monitor power factor and generator loading during normal operation

Visual inspection of bearing seals for seepage

Inspect generator air filters for build up of contaminants

Clean or replace air filters as required every week

Sign off on the daily generator check

On generators equipped with sleeve bearings, visually inspect the liner surface for abnormal wear patterns

Physical condition of stator output leads, protective sleeving and insulation

Tightness of all exposed electrical connections

Condition of transformers, fuses, capacitors and lightning arrestors

Proper clearance and spacing of all lead wires and electrical connections

Clean inside of outlet box, air screens, bearing housings and air baffles with compressed air and electrical solvent

Sign off on the generator maintenance