Graco 218-501, Instructions-Parts List Manual

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14
307-711
Maintenance
Tighten the Paint Pump Screws and Inlet Valve
See Fig. 10.
1. Follow the Pressure Relief Procedure on page 8.
2. Torque the four screws (25) on the paint pump (22)
to 170–200 in-lb (19–23 N.m).
3. Torque the inlet valve (26) to 320–360 in-lb (36–41
N.m).
Check and/or Change the Hydraulic Oil
See Fig. 11.
1. Follow the Pressure Relief Procedure on page 8.
2. Remove the fill cap (5). The oil should be 1 inch (25
mm) from the top of the plate. If the oil is low, add oil
as necessary. use only Graco lightweight hydraulic
oil, part no. 218–797. Reinstall the fill cap, hand tight,
if you are not going to change the oil.
3. To change the oil, turn the sprayer over and drain the
oil through the fill cap hole.
Whenever you remove the fill cap, be very careful not
to let any dirt, paint particles, or other contaminants
get into the hydraulic system. Contaminants can
cause damage to the hydraulic system.
CAUTION
4. Fill the hydraulic pump housing with 16.5 ounces (55
ml) of Graco lightweight hydraulic oil. Reinstall the fill
cap.
5. Plug in the sprayer. Turn the pressure control (4) fully
counterclockwise (no pressure). Turn on the
sprayer and let it run for two minutes to fill the hydrau-
lic system. Increase the pressure to the maximum
and turn the sprayer on and off four times to help rid
the hydraulic system of air.
Fig. 10
Lubricate the threads.
Torque to 170–200 in-lb (19–23 N.m).
Torque to 320–360 in-lb (36–41 N.m).
22
26
25
Fig. 11
1 inch
(25 mm)
5