Change Drums, Flush, Shutdown and Care of the Pump

Supply System Operation

Change Drums

Excessive air pressure in the material drum could cause the drum to rupture, causing serious injury. The platen must be free to move out of the drum. Never use drum blowoff air with a damaged drum.

1.Close the air motor ball valve (BF) to stop the pump.

2.Press and hold the blowoff air button (BG) then set ram director valve (BC) to UP to raise the platen (D) until the platen (D) is completely out of drum. When the ram exits the pail, release the blowoff air button to allow the ram to rise to its full height. Use mini- mum amount of air pressure necessary to push the platen out of the drum.

3.Remove empty drum.

4.Inspect platen and, if necessary, remove any remaining material or material build-up.

5.Place full drum on ram base.

6.Lower the ram and adjust the position of the drum relative to the platen. See Start and Adjust Ram on page 11.

NOTICE

To prevent material from curing in the system, imme- diately flush the system when a pressure drop is noticed during spraying and when done spraying.

Flush

1.Remove platen from pump, then submerge pump into solvent. To clean platen, gently wipe with sol- vent. NOTE: Read notice table in Flush Before Using Equipment section, page 10.

2.Perform Start and Adjust Ram on page 11 to pres- surize the pump with solvent.

3.Hold gun firmly against a grounded pail and trigger gun into pail until clean solvent dispenses.

Shutdown and Care of the Pump

1.Set the ram director valve (BC) to DOWN.

2.Follow the Pressure Relief Procedure on page 10.

3.Follow the pump shutdown instructions in Xtreme lowers manual. See Related Manuals on page 2.

Replace Throat Seals

Remove wet cup from displacement pump while attached to the ram to replace throat seals.

1.Follow the Pressure Relief Procedure on page 10.

2.Remove Quick Coupler.

3.Remove wet cup and packing cartridge according to instructions in Xtreme lowers manual. See Related Manuals on page 2.

Remove Quick Coupler

1.Ensure displacement pump is at bottom of stroke.

2.Follow the Pressure Relief Procedure on page 10.

3.Remove clip (GC), and slide coupling cover (GB) up to remove coupling (GA).

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