Stanley Black & Decker PG10 user manual Operation, PRE-OPERATION Procedures, Connecting the Hoses

OPERATION

PRE-OPERATION PROCEDURES

CHECK HYDRAULIC POWER SOURCE

1.Using a calibrated flow meter and pressure gauge, check that the hydraulic power source develops a flow of 7–10 gpm/26–38 lpm at 2200–2300 psi/152–

159 bar.

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

155 bar minimum.

3.Check that the hydraulic circuit matches the tool for open-center (OC) 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.

CHECK GUARD WELDMENT

1.Inspect the wheel guard weldment for cracks and other structural damage.

INSTALLING AND REMOVING GRINDING WHEEL

NOTE:

Use 6 inch diameter up to 3 inch thick (Type 6 for USA) grinding wheels with a 5/8-11 threaded arbor hole. Only use grinding wheels which comply with ANSI B7.1, B7.5/ISO 525, 603.

READ AND BECOME FAMILIAR WITH THE SECTIONS IN THIS MANUAL ON SAFETY PRECAUTIONS, TOOL STICKERS AND TAGS, HYDRAULIC HOSE REQUIRE- MENTS, HYDRAULIC REQUIREMENTS, AND PRE- OPERATION PROCEDURES BEFORE USING THIS PRODUCT.

1.Unscrew the two nuts (98) which secure the guard weldment (95) to the frame and remove the guard weldment.

2.Install the grinding wheel until it comes in contact with the drive flange.

3.Using the wrench (89) provided, place it on the flats of the drive flange. Place a strap wrench on the grinding wheel and then tighten by gripping and turning the strap wrench while holding the wrench provided.

4.Replace the guard weldment.

IMPORTANT

Never over-tighten the grinding wheel by impacting the wrench with a mallet or hammer. Sufficient torque is attained by hand-tightening the wheel with a strap wrench while securing the drive flange with the wrench provided.

ADJUST WHEEL FLANGES TO FIT RAIL

The wheel flanges may be adjusted to fit the width of the rail by removing one or more of the washers.

CONNECTING THE 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 hose couplers on the grinder. It is a good prac- tice to connect the return hose first and disconnect it last to minimize or avoid trapped pressure within the grinder motor.

3.Observe flow indicators stamped on hose couplers to be sure that oil will flow in the proper direction.

The female coupler is the inlet coupler.

NOTE:

The pressure increase in uncoupled hoses left in the sun may result in making them difficult to connect. When possible, connect the free ends of operating hoses together.

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