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Purge Pump of Air and Contaniments:
To remove the air from the pump, follow these steps:
, Set up the pressure washer as described in the AS-
SEMBLY section and connect the water supply.
Remove the nozzle attachment from the gun.
• Pull the trigger on the gun and hold.
To remove the contaniments from the pump, follow these
steps:
• Set up the pressure washer as described in the AS-
SEMBLY section, connect the water supply and start
the engine according to instructions in the OPERA-
TION section.
• Remove the nozzle attachment from the gun.
o Pull the trigger on the gun and hold.
= When thewater supply issteady and constant, you may
refasten the nozzle attachment and stad the pump.
PUMP MAINTENANCE
WARNING: DO NOT A'n'EMPT TO DISASSEMBLE
A THE PUMP. WITHOUT THE PROPER TECHNIQUE,
AI"FEMPTING TO DISASSEMBLE PUMP MAY
CAUSE PERSONAL INJURY. FOR SERVICE, CON-
SULT A SEARS AUTHORIZED SERVICE CENTER
OR CONTACT YOUR PLACE OF PURCHASE.
CHANGING ENGINE OIL
o Change oil after first 8 hours of operation. Change oil
every 50 hours thereafter, tf you are using your pres-
sure washer under extremely dirtyor dusty conditions,
or in extremely hot weather, change oil more often.
• Change oil while engine is stillwarm from running, as
follows:
A CAUTION: DISCONNECT SPARK PLUG WIRE i
FROM SPARK PLUG AND KEEP IT AWAY FROM
SPARK PLUG,
• Clean area around oildrain plug,remove plug and drain
oil completely into a suitable container (Fig. 23).
OIL DRAIN
PLUG PLUG
CONTAINER
'ump Oil: Change pump oil after first 50 hours of opera-
•_on.Change pump oil every time you change the engine
,il. To change pump oil, follows these steps:
Place a proper container beneath the pump (Fig. 22).
FIG. 23
* When oil has drained, install and tighten the oil drain
plug.
o Remove yellow oil fill plug and insert a clean fill funnel
into plug opening. Fill engine crankcase with recom-
mended oil until oil level is at point of overflowing. Do
not overfill above the point of overflowing. ,&.bout21
ounces (620ml) is required. POUR SLOWLY.
= When engine crankcase is filled to proper level. Install
and tighten oil fill plug.
RETORQUE HEAD BOLTS
After 50 hours of operation, retorque the head bolts for this
GN-Series engine to 4.0 kg/m (29 foot-pounds).
FIG. 22
• Remove the Oil Drain Plug of pump and drain oil into
the container.
• When oil has drained completely, reinstall oil drain
plug.
• Remove pump's oil fill plug, insert funnel and add
recommended SAE 80W-90 oil until level reaches full
mark on gauge located on side of the pump. Capacity
is 5 ounces (150 grams).
• Reinstall the pump's oil till plug.
31GINEMAINTENANCE
NECKING OIL LEVEL
' level should be checked prior to each use or at least
_4ery 5 hours of operation. Keep oil level maintained.
FIG. 24
The torque sequence is A, B, C, D, E (star pattern). See
Fig 24.
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