Graco Viscount I 1000 Pump [10/16] Maintenance

10 307622J

Maintenance

WARNING

To reduce the risk of serious injury whenever you

are instructed to relieve pressure, always follow the

Pressure Relief Procedure on page 8.

Check the tightness of the packing nut weekly. Always

relieve the pressure before adjusting. The packing

nut should be tight enough to stop leakage, but no

tighter. Overtightening compresses and damages the

packings and results in pump leaking.

Carefully monitor the fluid supply. If the pump empties

the supply container, air is sucked into the pump,

causing it to run too fast and to be damaged. If the

pump runs too fast, shut it off immediately. Fill the

supply container and prime the pump to remove all air,

or flush the pump.

Always flush the pump before any fluid dries in it.

Always stop the pump at the bottom of its stroke to

prevent the fluid from drying on the displacement rod

and damaging the throat packings.

Check Valve Adjustment

The fluid piston valve is factory set for low volume

pumping of light viscosity fluids. For heavier fluids or

more volume, increase the ball travel by moving the

pin (S) to a high set of holes. See Fig. 3.

Fig. 3

TI18607