WSC55 SERIES CHEMICAL SPRAY CART • OPERATION AND PARTS MANUAL — REV. #1 (08/30/19) — PAGE 33
OPERATION
3. Disconnect the suction hose from the quick-connect
fitting on the suction tube (Figure 37). Leave the other
end of the suction hose connected to the pump.
Figure 37. Compressor Connection
4. Connect the free end of the suction hose (Figure 37) to
the compressor port on the right side of the spray cart.
5. Push the compressor control lever forward until it
latches in the forward position (Figure 38), and let
the compressor run for 10–15 seconds. Any liquid
remaining in the suction and return hoses will flow
through the return tube back into the supply container.
bar
psi
0
5
20
10
150
100
300
5
0
0
250
200
15
SUCTION
HOSE
QUICK-CONNECT
FITTING
SUCTION
TUBE
DISCONNECT
SUCTION
HOSE
RECONNECT
COMPRESSOR
PORT
A
A
Figure 38. Engage Compressor
6. With the compressor still engaged, squeeze the spray
gun trigger and hold it until all remaining liquid has been
purged from the main hose and spray gun (Figure 39).
It is recommended to remove the suction tube and aim
the spray gun into the supply container while purging.
Figure 39. Purge Main Hose and Spray Gun
COMPRESSOR
CONTROL
LEVER
DRUM
COVER
SPRAY
GUN
MAIN
HOSE