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5. Using garden hose, remove additional debris by back
flushing water through nozzle extension (Figure 12). Back
flush between 30 to 60 seconds.Turn adjustable nozzle
extension to stream spray and move nozzle from low to
high while flushing.
Figure 12 — Backflushing the Nozzle
6. Reinstall orifice and in-line filter into nozzle extension.
DO NOT overtighten orifice with allen wrench.
7. Reconnect nozzle extension to spray gun.
8. Reconnect water supply, turn on water, and start engine.
9. Test pressure washer by operating with nozzle in high
and low positions.
O–Ring Maintenance
O–rings are used to keep the connections of the hoses and
spray gun tight and leak–free.Through the normal
operation of your pressure washer, these o-rings may
become worn or damaged.
An O–Ring Maintenance Kit is provided with your pressure
washer which includes replacement o-rings, rubber washer
and water inlet filter. Refer to the instruction sheet
provided in the kit to service your unit's o-rings. Note that
you will not use all of the parts in the kit.
To remove a worn or damaged o–ring; use a small flathead
screwdriver to get underneath the o-ring and pry it off.
Pump Maintenance
Changing Pump Oil
Change oil every 50 hours or once yearly, whichever
occurs first.
NOTE: You must purchase a premeasured bottle of pump
oil, item number 190586GS, by contacting the nearest
authorized service center.
Generac Portable Products 1950 PSI Pressure Washer
Change pump oil as follows:
1. Drain engine oil and fuel from pressure washer.
2. Use 8mm allen wrench to remove black pump oil cap,
found between high pressure outlet and garden hose
inlet (Figure 13).
Figure 13 - Changing Pump Oil
3. Tilt pressure washer to drain oil into an approved
container until it drips slowly from the pump.
4. Tilt pressure washer in opposite direction and empty
premeasured pump oil bottle into same opening (a small
funnel may be helpful).
5. Install black pump oil cap and tighten firmly.
6. Set pressure washer in upright position. Add fuel and
engine oil.
ENGINE MAINTENANCE
See the engine owner's manual for instructions on how to
properly maintain the engine.
CAUTION
Avoid prolonged or repeated skin contact with used
motor oil.
• Used motor oil has been shown to cause skin cancer in
certain laboratory animals.
• Thoroughly wash exposed areas with soap and water.
CAUTION!
CHILDREN. DON'T POLLUTE. CONSERVE
RESOURCES. RETURN USED OIL TO
COLLECTION CENTERS.
13
Oil Cap
KEEP OUT OF REACH OF
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