PROBLEM

CAUSE

CORRECTION

 

No or low pressure (after

1.

Worn seal or packing.

1.

Have replaced by AWSC.

 

period of normal use.)

2.

Worn or obstructed valves.

2. Have replaced by AWSC.

 

 

 

3.

Worn unloader piston.

3.

Have replaced by AWSC.

 

 

 

 

 

 

 

Water leaking at gun/wand

1.

Worn or broken o-ring.

1.

Check and replace.

 

connection

2.

Loose hose connection.

2.

Tighten.

 

 

 

 

 

 

 

 

 

 

 

Water leaking at pump

1.

Loose connections.

1.

Tighten.

 

 

 

2.

Piston packings worn.

2.

Have replaced by AWSC.

 

 

 

3. Worn or broken o-rings.

3.

Have replaced by AWSC.

 

 

 

4. Pump head or tubes damaged from

4.

Have replaced by AWSC.

 

 

 

 

freezing.

 

 

 

 

 

 

 

 

Oil leaking at pump

1.

Oil seals worn.

1. Have replaced by AWSC.

 

 

 

2.

Loose drain plug.

2.

Tighten.

 

 

 

3. Worn drain plug, o-ring

3.

Check and replace.

 

 

 

4. Worn fill plug o-ring.

4.

Check and replace.

 

 

 

5.

Pump overfilled.

5. Check for correct amount.

 

 

 

6.

Incorrect oil used.

6. Drain and fill with correct amount and type of

 

 

 

 

 

 

oil.

 

 

 

7.

Vent plug is clogged.

7.

Clean vent plug; blow air through it to

 

 

 

 

 

 

remove any blockage. If problem persists,

 

 

 

 

 

 

replace plug.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Image 16
Craftsman MGP-769010 owner manual No or low pressure after