Machining Hubless and Hubbed Drums
1.
Using rotor feed handwheel, crank rotor truer and pivot arm out o f the way so as to
clear drum that is being mounted on the arbor. Using drum feed handwheel, extend
drum cutter assembly fully toward rear of drum. Loosen 7/8" nut on drum cutter T-
bolt, and slide cutter assembly fully toward drum feed handwheel.
2.
Position drum tool bit to the rear of the drum, leaving approximately .050" between
drum friction surface and carbide tip.
3.
Tighten 7/8" nut on drum T-bolt to secure drum cutter assembly in position. Turn
drum handwheel counter-clockwise until drum slide starts to move. Turn switch to
drum position and turn on machine. Feed tool bit using calibrated hand knob until it
touches drum friction surface. Cut no more than is necessary to true drum surface.
Machine will cut up to .010'' per pass. Engage cam on drum feed handwheel to
begin cutting.
4.
If drum is deeply grooved, it is both advisable and time-saving to cut the high places
on either side by hand before beginning the final cut. Always check drum for size
after finishing machining. Discard it if the drum is not within specs.
5.
The replacement carbide inserts have three cutting surfaces. When sufficient wear
on carbide insert causes an inferior finish, rotate the carbide insert to a new cutting
edge. There is a relief below the cutting edge.
Do not turn these inserts over!
Machining Hubless and Hubbed Rotors
1.
After mounting rotors, it may be necessary to loosen two 7/8" nuts that secure rotor
truer to pivot arm so tool bits can be centered on rotor. Re-tighten the 7/8" nuts.
Never expand tool bits from holder any further than is necessary to machine the rotor.
Turn switch to "rotor position" and turn machine"on".
2.
Turn rotor feed handwheel clockwise toward innermost area of rotor friction
surface.
3.
Adjust calibrated hand knobs to desired depth. Maximum cut on a rotor is .010" per
side. However, you should never remove more material than necessary to bring
rotor surface back to OEM specifications.
4.
Engage cam mechanism on rotor feed handwheel to begin cutting. Make sure arbor
is turning in proper direction.
5.
After machining operation is complete, re-check rotor thickness. Discard rotor if it
is under minimum thickness.
9
Содержание ACCU-Turn 7700
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