Repair. Graco 3A8126A, E60/E50 King Electric Sprayer

Add to my manuals
36 Pages

advertisement

Repair. Graco 3A8126A, E60/E50 King Electric Sprayer | Manualzz

Repair

6.

Remove clip (11) and slide coupling cover (13) up to remove coupling (12).

To reduce the risk of injury due to skin injection and splashing, perform the

Pressure Relief Procedure, page 12

before performing any repair procedure.

• Set of adjustable wrenches

• Torque wrenches

• Rubber mallet

• Thread lubricant

• Anti-seize lubricant

• Thread sealant

7.

Use a wrench to hold the tie rod flats to keep rods (8) from turning. Unscrew nuts (10) and remove the lower (9).

1.

Flush the pump (see

Prime/Flush, page 14

).

Stop the pump at bottom of its stroke.

2.

Perform

Pressure Relief Procedure, page 12 .

3.

Disconnect the unit from the power source.

4.

Disconnect the fluid hose, then disconnect the suction hose. Hold the fluid inlet fitting with a wrench to keep it from loosening while you disconnect the suction hose.

8.

See your lower pump manual to service the lower.

9.

Reconnect the lower by following the disconnect steps in reverse order.

N•m).

Do not lift the pump by the lift ring when the weight exceeds 360 kg (800 lb). The lift ring could fail and result in injury.

Use caution when disconnecting the lower; they can weigh up to 25 kg (55 lb). Take appropriate precautions.

5.

If the driver does not require service, leave it attached to its mounting.

3A8126A 23

Repair

1.

Perform

Pressure Relief Procedure, page 12 , and

disconnect the unit from the power source before removing or servicing the outlet check valve.

2.

When replacing the outlet check valve, reinstall with the proper flow direction.

5.

Use two wrenches to loosen the hose, then disconnect the hose from the outlet check valve housing.

1.

Flush the pump (see

Prime/Flush, page 14

).

Stop the pump at the bottom of the stroke.

2.

Perform

Pressure Relief Procedure, page 12 .

3.

Disconnect the unit from the power source.

4.

Place a waste container below the outlet check valve to catch any material.

6.

Use a wrench to loosen the outlet check valve, then remove the outlet check valve from the pump lower.

attached to the outlet check valve housing during repair if needed.

7.

Remove the outlet check valve nut from the valve housing.

8.

Remove and clean all internal outlet check valve components. Inspect all components for wear or damage and replace components as needed.

9.

Reassemble parts in the reverse order they were removed; ball guides (3), spring retainer, compressor spring, and ball. Use a small blunt tool to push that ball in and verify that the ball and spring move freely.

10. Replace the o-ring and coat with grease.

11. Torque the outlet check valve nut onto the housing to 75–80 ft-lb (101–108 N•m).

for the outlet check valve repair, reinstall at this point.

12. Reattach the outlet check valve to the pump lower and verify the flow indication arrow is pointing away from the pump and that the pressure drain valve outlet is facing the ground.

13. Attach the dispense hose to the outlet check valve.

24 3A8126A

advertisement

Was this manual useful for you? Yes No
Thank you for your participation!

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project

Related manuals