Setup - Graco 253017 Instructions-Parts List Manual

General Information
NOTE: Reference numbers and letters in parentheses
in the text refer to the callouts in the figures and the
parts drawing.
Accessories are available from Graco. Make certain all
accessories are adequately sized and pressure-rated
to meet your system's requirements.
Fig. 1 is only a guide for selecting and installing sys-
tem components and accessories. Contact your Graco
distributor for assistance in designing a system to suit
your particular needs.
Hydraulic Operation
To convert the ram from air to hydraulic operation,
install Piston Kit 220501. See page 29. Contact your
Graco distributor for details.
Location
Position the ram so the air regulators for the pump and
the ram will be easily accessible. Ensure that there is
sufficient overhead clearance when the ram is fully
raised. Refer to Dimensions on page 31.
Using the holes in the ram base as a guide, drill holes
for 1/2 in. (13 mm) anchors.
Check that the ram base is level in all directions. If
necessary, level the base using metal shims. Secure
the base to the floor using 13 mm (1/2 in.) anchors
which are long enough to prevent the ram from tipping.
Air Line Components and Accessories
Refer to Fig. 1.
WARNING
A main air bleed valve (E) and pump air bleed
valve (H) are required. These accessories help
reduce the risk of serious injury, including fluid
injection and splashing of fluid in the eyes or on the
skin, and injury from moving parts if you are adjust-
ing or repairing the pump.
The main air bleed valve (E) shuts off and relieves
the air to the pump and ram. The ram will hold
pressure if the ram director valve (U) is in the
horizontal (neutral) position. To relieve air pressure
in the ram, close the main air bleed valve (E) and
move the director valve (U) to DOWN. The ram will
slowly drop.
The pump air bleed valve (H) relieves air trapped
between it and the pump after the air is shut off.
Trapped air can cause the pump to cycle unexpect-
edly. Locate the valve close to the pump.
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Setup

D The main air bleed valve (E) is required in your
system to shut off the air supply to the pump and
ram (see the WARNING at left). When closed, the
valve will bleed off all air in the ram and pump, and
the ram will slowly drop. Be sure the valve is easily
accessible from the pump, and is located upstream
from the air manifold (F).
D The pump air bleed valve (H) is required in your
system to relieve air trapped between it and the air
motor when the valve is closed (see the WARNING
at left). Be sure the valve is easily accessible from
the pump, and is located downstream from the
pump air regulator (G).
D The pump air regulator (G) controls pump speed
and outlet pressure by adjusting the air pressure to
the pump. Locate the regulator close to the pump,
but upstream from the pump air bleed valve.
D The air manifold (F) has a swivel air inlet. It
mounts to the ram, and provides ports for connect-
ing lines to air-powered accessories.
D An air line filter (J) removes harmful dirt and mois-
ture from the compressed air supply. Also, install a
drain valve (W) at the bottom of each air line drop,
to drain off moisture.
D A second bleed-type air valve (K) isolates the air
line accessories for servicing. Locate upstream
from all other air line accessories.
D The ram air regulator (T) controls the air pressure
to the ram.
D The ram director valve (U) controls the raising
and lowering of the ram.
D The air release valve (V) opens and closes the
flow of air to assist raising the wiper plate (C) out of
an empty drum.
D The check valve (CC) bleeds air from under the
wiper plate (C) to assist in priming the pump.