Prepare the Pump for Maintenance

3. Turn OFF the machine.

Figure 705  

4. Disconnect the power cord from the electrical outlet.
5. Turn OFF the water supply.
6. Ensure there is no pressurized water in the high-pressure lines.
a. Open the lid and lock it in the upright position.
CAUTION

Use care when opening or closing the lid to avoid injury. Never let the lid free-fall. Keep hand, fingers, or body parts away from the side of the table when closing the lid.

b. Loosen the gland nut [1] to release the pressure; water can leak from the inlet body weep hole.

Figure 706  

c. Tighten the gland nut [1].

Figure 707  

7. Remove the side panels.
8. Remove the front frame support bracket [1].

Figure 708  

9. Disconnect the pump power cable.

Figure 709  

10. Disconnect the high-pressure plumbing.
NOTICE

Protect the connecting ends from external contamination or debris. Debris can enter into the high-pressure plumbing system and damage the pump or nozzle.

Figure 710  

11. Loosen the high-pressure support bracket [1] and remove the support cap [2].

Figure 711  

12. Disconnect the cooling line OUT [1].
NOTICE

Protect the connecting ends from external contamination or debris. Debris can enter into the high-pressure plumbing system and damage the pump or nozzle.

Figure 712  

13. Disconnect the cooling line IN [1].
NOTICE

Protect the connecting ends from external contamination or debris. Debris can enter into the high-pressure plumbing system and damage the pump or nozzle.

Figure 713  

14. Disconnect the incoming water hose [1].
NOTICE

Protect the connecting ends from external contamination or debris. Debris can enter into the high-pressure plumbing system and damage the pump or nozzle.

Figure 714  

15. Disconnect the transducer cable [1].
NOTICE

Protect the connecting ends from external contamination or debris. Debris can enter into the high-pressure plumbing system and damage the pump or nozzle.

Figure 715  

16. Unlock the pump wheels and move the pump out from the machine.