Stanley Black & Decker CO25 Preoperation Procedures, Tool Operation, Handheld Configuration

OPERATION

PREOPERATION PROCEDURES

CHECK THE POWER SOURCE

Careful inspection of the tool and hydraulic system before startup is important for safe, reliable operation of the tool.

1.Using a calibrated flowmeter and pressure gauge, check that the hydraulic power source develops a flow of 7–9 gpm (26–34 lpm) at 2000 psi (140 bar).

2.Make certain the hydraulic power source is equipped with a relief valve set to open at 2100–2250 psi (145–155 bar).

CHECK THE TOOL

The following items should be checked daily.

Make sure the hydraulic system control valve is in the “OFF” position and the hoses are disconnected before inspecting the cutoff saw.

1.Inspect the cut-off wheel and guard. Make sure the cor- rect cut-off wheel is installed for the job. If not, follow the instructions for Cut-off Wheel Replacement section of this manual.

2.Inspect the wheel for chips, cracks, or other damage. For maximum tool performance, replace the wheel if it is worn or defective.

3.Inspect the wheel guard for cracks or other structural damage.

4.There should be no signs of leaks.

5.Inspect the handlebar. Make sure the handlebar is se- curely fastened to the cutoff saw and is clean of any oil to ensure a firm grip.

IMPORTANT

Check the speed of the motor output shaft after every 100 hours of operation.

CHECK TRIGGER MECHANISM

1.Inspect the trigger and safety catch. Make sure the trig- ger operates smoothly and is free to travel between the “ON: and “OFF” positions.

2.Make sure the trigger is set to disengage the cut-off saw when released.

3.Check that the safety catch on the handle assembly is operating properly. It should prevent engagement of the trigger unless the catch is pressed down fully in the handle slot.

CONNECT HOSES

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

2.Connect hoses from the hydraulic power source to the tool fittings or quick disconnects. It is good practice to con- nect the return hose first and disconnect it last to minimize or eliminate trapped pressure within the wrench.

3.Observe the flow indicators stamped on the valve handle assembly and the hose couplers to ensure that the flow is in the proper directions. The female couple on the tools “IN” port is the inlet (pressure) coupler.

Note:

If the uncoupled hoses are left in the sun, pressure increase within the hoses can make them difficult to connect. Whenever possible, connect the free ends of hoses together.

TOOL OPERATION

STARTUP

1.Move the hydraulic system control valve to the “ON” position.

2.At the beginning of each shift, or after a new wheel is installed, run the cut-off saw at operating speed for at least one minute before starting work.

HANDHELD CONFIGURATION:

1.Press the safety catch into the handle, then slowly squeeze the trigger.

2.Run the saw at least one minute.

3.Release the trigger and safety catch.

MOUNTED CONFIGURATION (SAW CART):

1.Make sure the lower edge of the cutoff wheel is at least 1 inch above the work surface.

2.Slowly squeeze the hand control lever.

3.Run the saw at least one minute, then release the control lever.

CO25 User Manual ◄ 11