Section 4 Maintenance And Troubleshooting; Maintenance; Maintenance Schedule; Preventive Maintenance - Generac Power Systems 4240 PRO GAS PW 49ST EPA III Owner's Manual

Maintenance and Troubleshooting

Section 4 Maintenance and Troubleshooting

Maintenance

Regular maintenance
performance and extend engine/equipment
life. Generac
recommends that all maintenance work be
performed by an Independent Authorized
Service Dealer (IASD). Regular maintenance,
replacement, or repair of the emissions control
devices and systems may be performed by
any repair shop or person of the owner's
choosing. To obtain
warranty service free of charge, the work must
be performed by an IASD. See the emissions
warranty.
Power washer warranty does not cover items
subjected to operator abuse or negligence. To
receive full warranty value, operator must
maintain power washer as instructed in this
manual, including proper storage as detailed
in Storage.
NOTE: Call 1-888-GENERAC (1-888-436-
3722) with questions
replacement.
NOTE: All required service and adjustments
should be each season, as detailed in
Maintenance Schedule.

Maintenance Schedule

Follow maintenance
whichever occurs first according to use.
NOTE: Adverse conditions will require more
frequent service.
First 5 Hours
Change engine oil
Every 8 Hours or Daily
Inspect/clean water inlet screen*
Inspect high-pressure hose
Inspect detergent siphoning hose/filter
Inspect spray gun and assembly for leaks
Clean debris
Inspect engine oil level
Inspect pump oil level
Every 50 Hours or Every Year
Inspect/clean air cleaner filter**
Change engine oil**
Change pump oil**
Inspect muffler and spark arrestor*
Every 100 Hours or Every Year
Service spark plug
* Clean if clogged. Replace if perforated or torn.
** Service more often under dirty or dusty
conditions.
10
will improve
Power Systems,
emissions
about component
schedule intervals,

Preventive Maintenance

Dirt or debris can cause improper operation
and equipment damage. Clean power washer
daily or before each use. Keep area around
Inc.
and behind muffler free from combustible
debris. Inspect all cooling air openings on
power washer.
• Use a damp cloth to wipe exterior surfaces
clean.
• DO NOT insert any objects through cooling
control
air openings.
• Use a soft bristle brush to loosen caked on
dirt, oil, etc.
• Use a vacuum to pick up loose dirt and
debris.
Inspect and Clean Inlet Screen
Inspect inlet screen on pump water inlet.
Clean clogged screen and replace screen if
damaged.
Inspect High-Pressure Hoses
High-pressure hoses can develop leaks from
wear, kinking, or abuse. Inspect hoses before
each use. Inspect for cuts, leaks, abrasions,
bulging, and damage or movement
couplings. If these conditions exist, replace
hose immediately.
NOTE: DO NOT repair high-pressure hose.
Replace with hose that meets or exceeds
maximum pressure rating of unit.
Inspect Detergent Siphoning Tube
Inspect filter on detergent tube and clean if
clogged. Tube should fit tightly on barbed
fitting. Examine tube for leaks or tears.
Replace filter or tube if either is damaged.
Inspect Spray Gun
NOTE: Replace spray gun immediately if it
fails any test steps.
Figure 4-1.Test Spray Gun (typical)
1. Verify spray gun hose connection is
secure.
2. Squeeze and release trigger.
NOTE: Trigger should spring back into place
and lock when released.
Owner's Manual for Power Washer
of
000123