Bosch Power Tools CET4-20W Adjusting regulator, Connecting Air Supply, Operating Temperatures

Models: CET3-10 CET4-20W

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Operation

Adjusting regulator

This compressor is provided with an internal regulator that controls the output pressure of two female quick connect couplers. Regulated pressure will be equal to or less than tank pressure depending on user setting.

Regulator (A)

Regulated Pressure

Gauge (B)

Fig. 7

To adjust regulated pressure (see Fig. 7):

1.Pull regulator knob out (A).

2.To increase pressure, turn clockwise.

3.To decrease pressure, turn counter clockwise.

4.When desired pressure is set, push regulator knob in to lock pressure.

5.Regulated pressure gauge is displayed as (B).

Connecting Air Supply

WARNING Firmly grasp the hose in hand when installing hoses. If hose is not held firmly or correctly installed hose may whip and injure personnel in the operating area.

Installing Hoses (See Fig. 8):

1.Grasp the hose at the quick connect plug and push the plug into the quick connect body. Coupler will snap into place.

2.Grasp the hose and pull to ensure coupler is seated.

Fig. 8

Operating Temperatures

Operating temperatures are between 32°F and 104°F (0°C and 40°C). If operating outside recommended temperatures, unit may have difficulity starting and will cause additional wear on components.

WARNING Disconnect the compressor from the power source, drain air tanks and allow it to cool before making adjustments, moving the compressor, leaving the work area, performing maintenance or storing the compressor. Such precautionary safety measures reduce the risk of injury.

Shutting down the compressor

1.Move On/Off switch to the OFF position.

2.Turn regulator until outlet pressure gauge reads 0 psi.

3.Remove hose and assembly. See disconnecting air supply below.

4.Drainairfromtheairtanksbyreleasingairbypulling the safety release valve.

5.Oncetheairtankpressureisunder20psi,openthe drain valve on the control panel to drain moisture from the tanks (See draining tanks on page 12).

6.Allow the compressor to cool down before storing.

Disconnecting Air Supply

Disconnecting Hoses (See Fig. 8)

1.Ensure regulated pressure gauge reads 0 psi (0 kPa).

2.Pull coupler on quick connect body back to release quick connect plug on hose.

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Bosch Power Tools CET4-20W Adjusting regulator, Connecting Air Supply, Operating Temperatures, Disconnecting Air Supply