ES ON-OFF Valve Repair, Moving Parts Hazard

Service

ES ON-OFF Valve Repair

1.Prepare the gun for service as instructed on page 22.

2.Loosen the set screw (24) with the 2 mm hex key (69) provided. Remove the lever (26) from the valve. See Fig. 23.

WARNING

MOVING PARTS HAZARD

To reduce the risk of eye injury, be sure

to wear safety glasses when removing or installing the retaining ring (47) as the

retaining ring could slip off the tool when com- pressed.

3.Use internal snap ring pliers to remove the retain- ing ring (47) from the handle. Align the holes in the retaining ring with the flat on the spacer (32) to ease assembly and disassembly.

4.Remove the valve body (38) from the handle; be careful not to drop the regulator disk (46) and spacer (32).

5.Clean and inspect the parts for damage. Replace if necessary. Lubricate the o-ring (36) with petroleum jelly.

CAUTION

Do not over-lubricate parts. Excessive lubricant on the o-ring (36) can be pushed into the gun air pas- sage and blemish the finish on the workpiece.

6.Install the regulator disk (46) in the valve (38) with its bevelled side facing in toward the valve.

CAUTION

Be sure the regulator disk (46) is installed correctly. A missing or incorrectly installed regulator disc can cause severe damage to the power supply.

7.Install the valve (38) with the regulator disc (46) and o-ring (36) into the gun handle. Install the spacer (32) on the valve.

8.Install the retaining ring (47) into the groove in the handle. Install the lever (26) and tighten the set screw (24).

WARNING

MOVING PARTS HAZARD

Make sure that the retaining ring (47) is

engaged in the groove in the gun handle when installing the ES ON-OFF Valve. If the retaining ring is missing or improperly installed,

the valve assembly can be propelled out of the gun when air pressure is applied and cause serious injury.

Bevelled side of disk (46) faces toward valve (38)

Lubricate o-rings with petroleum jelly

0388

Fig. 23

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