19
11. PREPARING THE RAIL DRILL
Always remove the battery when servicing the drill, before removing the cutting tools (broach cutters, spiral
bits and positioning templates etc).
Be careful of the broach cutter’s sharp edges. Always wear work gloves to avoid injury.
The drill spindle is factory-set to operate with
Cembre
CY range broach cutters fi tted with Quick push/turn
coupling; use of broach cutters and twist drill bits fi tted with Weldon shank only requires disassembly of the
transverse pin in the spindle (Ref. to §11.2).
11.1) Assembling broach cutters with Quick push/turn shank
Using the drive lever, turn the spindle so as to facilitate operation.
Insert the correct guide bit into the broach cutter (Ref. to §
3.10
), from the shank end.
Insert the broach cutter into the spindle by positioning it so that the side fl at lines up with the transverse pin
within the spindle, then rotate in a clockwise direction (2); the broach cutter will be locked without the need to
tighten the two grub screws (18).
Check that the guide bit slides freely by applying slight pressure on it.
To disassemble the broach cutter, turn in an anticlockwise direction and remove it from the spindle.
Before fi tting, always check that the broach cutter is provided with the O-ring to ensure it secures correctly.
It is also possible to assemble broach cutters with Weldon shanks (Ref. to § 11.2).
1
2
PP.. guide bit
spindle
transverse
pin
side fl at
18
guide bits PP or PPL
O-ring
push
turn