Nozzle Maintenance; Section 5: Maintenance; Pump Maintenance - Troy-Bilt 020242 Manual Del Propietário

1. Detach spray gun and nozzle extension from high
pressure hose. Detach nozzle extension from spray gun
and remove o-ring and screen from nozzle extension.
Flush screen, spray gun, and nozzle extension with
clean water to clear debris.
2. Place in-line filter screen into threaded end of nozzle
extension. Direction does not matter. Push screen in
with eraser end of pencil until it rests flat at bottom of
opening.Take care to not bend screen.
3. Place o-ring into recess. Push o-ring snugly against
in-line filter screen.
4. Assemble nozzle extension to spray gun, as described
earlier in this manual.

Nozzle Maintenance

A pulsing sensation felt while squeezing the spray gun
trigger may be caused by excessive pump pressure.The
principal cause of excessive pump pressure is a nozzle
clogged or restricted with foreign materials, such as dirt,
etc.To correct the problem, immediately clean the nozzle
following these instructions:
1. Shut off engine and turn off water supply.
2. Remove nozzle from end of nozzle extension.
3. Remove in-line filter from other end of nozzle extension.
4. Use a small paper clip to free any foreign material
clogging or restricting nozzle (Figure 18).
Figure 18 — Nozzle Maintenance
Use wire here
to remove
debris.
5. Using a garden hose, remove additional debris by back
flushing water through nozzle extension (Figure 19).
Back flush between 30 to 60 seconds.
Figure 19 — Backflushing the Nozzle Extension
6. Reinstall nozzle and in-line filter into nozzle extension.
7. Reconnect nozzle extension to spray gun.

Section 5: Maintenance

8. Reconnect water supply, turn on water, and start engine.
9. Test pressure washer by operating with each quick
connect nozzles.
O–Ring Maintenance
Purchase an O–Ring/Maintenance Kit, part number
191922GS by contacting the nearest authorized service
center. It is not included with the pressure washer.This kit
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.
WARNING
The high pressure stream of water that this
equipment produces can pierce skin and its
underlying tissues, leading to serious injury and
possible amputation.
• NEVER repair leaking connections with sealant of any kind.
Replace o-ring or seal.

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 190585GS, by contacting the nearest
authorized service center.
Change pump oil as follows:
1. Drain engine oil and fuel from pressure washer.
2. Use a 8mm allen wrench to remove black pump oil cap
between high pressure outlet and garden hose inlet
(Figure 20).
Figure 20 - Changing Pump Oil
15
Oil Cap