Westinghouse WGen5300c, User Manual

18 | Westinghouse Outdoor Power Equipment, LLC

MAINTENANCE

Fire hazard. 

DO NOT

 up-end the generator or place it on 

its side. Fuel or oil can leak and damage to the generator 

may occur. 

Accidental start-up. Disconnect the spark plug boot from 

the spark plug when performing maintenance on the 

generator. 

MAINTENANCE SCHEDULE

Regular maintenance will improve performance and 

extend the service life of the generator. Follow the hourly 

or calendar intervals, whichever occurs first. More frequent 

service is required when operating in adverse conditions 

as noted below. 

Before Each Use

Check engine oil

After First 25 Hours or First Month

Change engine oil

After 50 Hours or Every 6 Months

Change engine oil

1

Clean air filter

2

After 100 Hours or Every 6 Months

Inspect/clean spark arrestor 

Inspect/clean spark plug 

Fuel valve maintenance 

Inspect/adjust valve clearance

3

After 300 Hours or Every Year

Replace spark plug 

Replace air filter

1

Change oil every month when operating under heavy 

load or in high temperatures. 

2

Clean more often under dirty or dusty conditions. 

Replace air filter if it cannot be adequately cleaned.

3

Recommend service to be performed by authorized 

Westinghouse service dealer.

MAINTENANCE REMINDERS

Maintenance reminder codes will be shown on the Data 

Display based on unit Lifetime Hours. The maintenance 

codes will be displayed until the unit is turned off. Refer to 

the Maintenance section for specific procedures. 

Maintenance Code Required Maintenance

P25

Change engine oil

P50

•  Change engine oil

• 

Clean air filter

P100

•  Change engine oil

• 

Clean air filter

•  Fuel valve maintenance

•  Inspect/adjust valve clearance

MAINTENANCE REPLACEMENT PARTS

Description

Part Number

Air filter

5941

Oil drain plug crush washer

94007

Spark arrestor

6790

Spark plug

97108 (F7TC)

AIR FILTER MAINTENANCE

The air filter must be cleaned after every 50 hours of use or 

six months (frequency should be increased if the generator  

is operated in a dusty environment).

1. 

Place the generator on a level surface and allow the 

engine to cool for several minutes.

2. 

Release the clips and remove the air filter cover. 

3. 

Clean  the  air  filter  with  compressed  air.  Replace  if 

damaged. 

4. 

Make  sure  the  air  filter  and  rubber  cap  are  correctly 

installed. Install the air filter cover and secure it in place 

with the cover clips. 

Rubber cap

Air filter

MAINTENANCE