OPERATION
PREOPERATION PROCEDURES
PREPARATION FOR INITIAL USE
The tool as shipped has no special unpacking or assem- bly requirements prior to usage. Inspection to assure the tool was not damaged in shipping and that it does not contain packing debris is all that is required. Otherwise, the tool may be connected to a hydraulic source upon receipt.
CHECK HYDRAULIC POWER SOURCE
1.Using a calibrated flowmeter and pressure gauge, check that the hydraulic power source develops a flow of
2.Make certain the hydraulic power source is equipped with a relief valve set to open at
159 bar ma⋅imum.
3.Make certain that the power source return pressure does not e⋅ceed 250 psi/17 bar.
CONNECT HOSES
1.Wipe all hose couplers with a clean
2.Connect the hoses from the hydraulic power source to the hose couplers on the tool. It is a good prac- tice to connect the return hose first and disconnect it last to minimize or avoid trapped pressure within the tool.
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.
4.Observe the IN and OUT port lettering on the valve block assembly to ensure that the hydraulic flow is in the proper direction. The IN port lettering indicates the inlet (pressure) side.
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.
USING COOLANT
The RD12 rail drill is equipped with a separate coolant can assembly that is used to deliver coolant to the drill bit. Follow the instructions below to use the coolant can assembly with the rail drill:
1.If operating the rail drill at temperatures above
32 °F/0 °C, fill the coolant can with ordinary tap wa- ter.
2.If operating the rail drill at temperatures below
32 °F/0 °C, fill the coolant can with a mi⋅ture of 50% ordinary tap water and 50% biodegradable anti- freeze.
3.Pressurize the coolant can using the carrying han- dle/pump.
4.Connect the coolant can assembly to the rail drill us- ing the supplied
OPERATING PROCEDURES
1.Observe all safety precautions.
2.Make sure the drill bit you intend to use contains carbide inserts with good cutting surfaces. If the surfaces are worn or chipped, unscrew the retaining screw and rotate the insert to a good cutting surface. If the inserts do not contain a good cutting surface on one of the four sides, replace the inserts. Make sure the bit holder is not damaged.
3.Install the drill bit into the piston machining assem- bly (24) and then turn it clockwise until it stops.
RAIL TEMPLATES & HOLE GUIDES
NOTE:
The RD12 must be used with rail templates and hole guides. See the chart at the end of this section for selections of rail templates and hole guides.
1.Install a hole guide assembly onto the rail and posi- tion it where you want to drill.
2.Install templates onto the rail drill with the rail size facing the rail.
NOTE:
To avoid drill bit damage, make sure the drill bit/pis- ton assembly is fully retracted prior to placing the RD12 on the rail.
3.Set the rail drill over the hole guide on the rail so that the templates are nested between the ball and the base of the rail and the adjustment screw (52) fits in a slot in the hole guide.
4.Adjust the threaded shaft (44) until there is no move- ment of the rail drill as it sits on the rail and the hole guide. Wiggle the RD12 to remove all looseness. Then lift the handle (49) up and turn the threaded shaft (44) clockwise appro⋅imately 1/2 turn. Push the handle (49) down hard to firmly clamp the RD12 to the rail.
10 ► RD12 User Manual