L20C Air Controls; Pressure Relief Procedure; Disassembly; Replace Air Motor Regulator - Graco L20c Instructions - Parts Manual

L20c Air Controls

To reduce the risk of serious injury whenever you are
instructed to relieve the pressure, follow the Pressure
Relief Procedure.

Pressure Relief Procedure

1. Close the air motor shutoff valve (E) and remove air
line from air control coupling (x).
2. Set the elevator director valve to DOWN. The ram
will slowly drop.

Disassembly

1. Remove two screws that attach air control panel to
elevator.
2. Disconnect all hoses and tubing from existing air
control.

Replace Air Motor Regulator

1. Loosen swivel fitting (205) between regulator (206)
and air motor shutoff valve (203).
2. Remove nut (218) from front of regulator and pull
regulator out of panel (201).
205
203
F . 14
IG
312374H
Replace Air Motor Shutoff Valve
and Ram Shutoff Valve
See parts illustration on page 10.
1. Remove two screws (211) from air motor shutoff
2. Remove valve assemblies from panel.

Remove Blowoff Push Button

See parts illustration on page 10.
1. Hold button in place and remove screw.
2. Remove nut underneath button and push button

Reassembly

1. Replace parts as needed and reassemble them in
2. Connect all hoses and tubing.
3. Install air controls on elevator with two screws and
206
218
201
r_289105_312375_8a
valve and two screws (209) from ram shutoff valve.
from panel (201).
the reverse order of disassembly.
lockwashers from kit 257613. See manual 313527.
L20c Air Controls
9