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Prime/Flush
312376L 13
Prime/Flush
Flush with a fluid that is compatible with the fluid you are
pumping and with the wetted parts in your system.
Check with your fluid manufacturer or supplier for rec-
ommended flushing fluids and flushing frequency.
Always flush the pump before fluid dries on the displace-
ment rod.
1. Follow Pressure Relief Procedure on page 12.
2. Remove the spray tip/nozzle from the gun/valve.
3. Hold a metal part of the gun/valve firmly to the side
of a grounded metal pail.
4. Start the pump. Always use the lowest possible fluid
pressure when flushing.
5. Trigger the gun/valve.
6. Flush the system until clear solvent flows from the
gun/valve.
7. Relieve the pressure.
Start Up and Adjust Pump
1. Supply fluid to the pump, per the requirements of
your system.
2. Be sure the pump air regulator is closed.
3. For D200s, D200, D60, and S20 Air Controls:
a. Set ram air regulator to about 50 psi (3.5 bar).
b. Set the ram director valve to down.
The pump is tested with lightweight oil, which is left
in to protect the pump parts. If the fluid you are
using may be contaminated by the oil, flush it out
with a compatible solvent before using the pump.
CAUTION
Never leave water or water-based fluid in a carbon
steel pump overnight. If you are pumping a
water-based fluid, flush with water first. Then flush
with a rust inhibitor, such as mineral spirits. Relieve
pressure, but leave rust inhibitor in pump to protect
parts from corrosion.
Keep hands and fingers away from the priming piston
during operation and whenever the pump is charged
with air. The priming piston extends beyond the intake
housing to pull material into the pump and can ampu-
tate a hand or finger caught between it and the intake
housing. Follow the Pressure Relief Procedure on
page 12 before checking, clearing, or cleaning the
priming piston.
FIG. 9: D200s, D200,D60, and S20 Systems
Ram Air Regulator
Ram Director Valve
ti10438a
Air Motor Regulator
Air Motor Valve