Control Valve Replacement; Speed Control Replacement; Pressure Valve Replacement; Forward Switch Replacement - National Flooring Equipment 5280 Series Service Manual

Maintenance

CONTROL VALVE REPLACEMENT

3. Disconnect valve plunger from control linkage.
4. Mark the placement of the four hoses so they can be returned to their original positions.
5. Disconnect and remove the four hoses from valve body.
6. Remove valve mounting bolts and nuts, remove valve.
Reverse these steps for installation.

SPEED CONTROL REPLACEMENT

1. Use 3/32" Allen wrench to remove metal knob.
2. Use a 1" socket to remove and replace speed control valve.
3. Re-install metal knob.

PRESSURE VALVE REPLACEMENT

This has been factory set and should not be tampered with. Use a 1" socket to remove old unit and install new.

FORWARD SWITCH REPLACEMENT

1. Disconnect machine from power source.
2. Remove two 1/4-20x1/2 hexhead bolts from handle. Use 7/16" wrench or socket.
3. Remove 1/4-20 bolt from lever.
4. Remove switch.
5. Remove two spade connectors from switch.
6. Replace switch.

POWER CORD

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