Shutdown And Care Of The Pump; Replace Throat Seals - Graco L20c Operation

Supply System Operation

Shutdown and Care of the Pump

1. Set the ram director valve (BC) or elevator director
valve (DD) to DOWN.
2. Follow the Pressure Relief Procedure on page 19.
3. Follow the pump shutdown instructions in separate
pump manual.

Replace Throat Seals

Quick Coupler
Remove wet cup from displacement pump while
attached to the ram to replace throat seals.
1. Ensure displacement pump is at bottom of stroke.
2. Follow the Pressure Relief Procedure on page 19.
3. Remove Quick Coupler:
Remove clip (GC), and slide coupling cover (GB) up
to remove coupling (GA).
GC
4. Remove Threaded Coupler: (not shown)
Loosen and remove coupling nut as described in
pump packages manual 312376.
5. Lift air motor rod to bring rod to top of stroke.
6. Remove wet cup and packing cartridge according to
instructions in displacement pump manual(s).
22
GB
GA
ti10508a