Stanley Black & Decker CS25/28 manual Pre-Operation Procedures, Check Tool, Check Power Source

OPERATION

PRE-OPERATION PROCEDURES

CHECK POWER SOURCE

1.Using a calibrated flowmeter and pressure gauge, make sure the hydraulic power source develops a flow of 4-6 gpm /15-22 lpm at 1500-2000 psi/105/140 bar for the CS25 or a flow of 7-9 gpm/26-34 lpm at

1000-2000 psi/70-140 bar for the CS28.

2.Make sure the power source is equipped with a re- lief valve set to open at 2100-2250 psi/145-155 bar.

3.Check that the dual spool valve is set to the hydrau- lic system type (open-center (CC) or closed-center (CC) operation).

CHECK TOOL

1.Make sure all tool accessories are correctly in- stalled. Failure to install tool accessories properly can result in damage to the tool or personal injury.

2.There should be no signs of leaks.

3.The tool should be clean, with all fittings and fasten- ers tight.

CHECK TRIGGER MECHANISM

1.Check that the trigger operates smoothly and is free to travel between the ON and OFF positions.

SETTING THE DUAL SPOOL FOR OPERATION

IMPORTANT

This tool is furnished with a on-off spool commonly

referred to as a “dual spool” which permits

adjustment so the tool may be operated on either a open-center hydraulic system or a closed-center hydraulic system. The dual spool is normally

set to the open-center (OC) position at time of manufacture. The dual spool can also be disabled so that the tool may be set to open-center only operation or closed-center only operation. For more details, please refer to the following instructions.

SETTING FOR OPEN-CENTER (OC) OR CLOSED-CENTER (CC) OPERATION

To set the tool for OC system operation turn the selec- tor screw located in the top of the valve spool fully out (counter-clockwise) until it hits the stop.

To set the tool for CC system operation turn the selector

screw located in the top of the valve spool fully in (clock- wise) until it bottoms.

TO DISABLE DUAL SPOOL OPERATION AND CONVERT TO OC ONLY OPERATION

Turn the selector screw located in the top of the valve spool fully out (counter-clockwise) until it hits the stop.

1.Insert the small plug from the kit (furnished with the tool) into the hole located in the top of the selector screw. Tap the plug down using a small punch and hammer. DO NOT USE ANY ADHESIVES.

TO DISABLE DUAL SPOOL OPERATION AND CONVERT TO CC ONLY OPERATION

1.Turn the selector screw located in the top of the valve spool fully in (clockwise) until it bottoms.

2.Insert the small plug from the kit (furnished with the tool) into the hole located in the top of the selector screw. Tap the plug down using a small punch and hammer. DO NOT USE ANY ADHESIVES.

CONNECTING HOSES

1.Wipe all hose couplers with a clean lint-free cloth before making connections.

2.Connect the hoses from the hydraulic power source to the tool fittings or quick disconnects. It is a good practice to connect return hoses first and discon- nect them last to minimize or avoid trapped pressure within the tool.

3.Observe the arrow on the couplers to ensure that the flow is in the proper direction. The female cou- pler on the tool is the inlet (pressure) coupler.

4.Move the hydraulic circuit control valve to the ON position to operate the tool.

NOTE:

If uncoupled hoses are left in the sun, pressure in- crease inside the hoses can make them difficult to connect. If possible, connect the free ends of the hoses together.

CS25/28 User Manual ◄ 13