Graco Inc 800-671, 308-523, 800-672, 800-674, 800-670 manual SHUTDOWN, Flushing Storage, Maintenance

SHUTDOWN, FLUSHING

AND STORAGE

WARNING

Pressure Relief Procedure

To reduce the risk of serious bodily injury, including fluid injection and splashing in the eyes, or on the skin, always follow this procedure whenever you stop spraying for more than 10 minutes, when shutting down, and before checking or repairing any part of the system.

1.Engage the trigger safety latch.

2.Turn the sprayer off.

3.Remove the ignition cable from the spark plug.

4.Shut off the water supply.

5.Disengage the trigger safety latch and trigger the gun to relieve pressure, and then engage the trigger safety latch again.

6.Before long±term (overnight) storage or transporting of unit, disconnect the water supply, and turn off the fuel supply valve.

1.If the pressure washer will be exposed to freezing temperatures, drain all water out of the pump. If it must be stored in freezing temperatures, flush the unit with a 50% anti±freeze solution. Relieve pressure. Flush the pressure washer before using it again to remove the anti±freeze.

NOTE: An anti±freeze flush kit, P/N 802±327, is available to make flushing easier.

CAUTION

If water does freeze in the pressure washer, thaw it in a warm room before trying to start it. DO NOT pour hot water on or into the pump; it may crack the ceramic plungers!

2.After each use, wipe all surfaces of the pressure washer with a clean, damp cloth.

3.Perform the appropriate maintenance. See maintenance chart.

MAINTENANCE

Observing regular maintenance intervals helps ensure that you get maximum performance and life from the pressure washer.

There is a break±in period for the engine, pump and gear reducer (if used). After changing the oil in these components following their respective break±in periods, the interval between required changes is longer.

If the unit is operating in dusty conditions, these maintenance checks should be made more often.

WARNING

To reduce the risk of serious bodily injury, including fluid injection, splashing in the eyes or on the skin or injury from moving parts, always follow the Pressure Relief Procedure Warning before proceeding.

Interval	What to do
Daily	Clean water inlet screen and
	filter. Check engine and pump oil
	levels. Fill as necessary. Check
	gasoline level. Fill as necessary.
After first 5	Change engine break±in oil. Drain
hours of	oil when warm. Use SAE 30 or
operation	10W±30 detergent oil.
Each 25 hours	Clean and remove air cleaner
of operation	foam. Wash with water and
	detergent. Dry thoroughly. Rub
	with oil and squeeze to distribute
	oil.
After first 50	Change pump break±in oil. Use
hours of	SAE 20 or 30 non±detergent oil.
operation	Change gear reducer oil. Use
	SAE 90 gear oil.
Each 100 hours	Clean or replace paper air
of operation	cleaner cartridge. Tap gently to
or 3 months	remove dirt. Change engine oil.
	Use SAE 30 or 10W±30
	detergent oil.
Each 500 hours	Change pump oil. Use SAE 20 or
of operation	30 non±detergent oil. Change
or 6 months	gear reducer oil. Use SAE 90
	gear oil.