MK Products Cobra MX Gun - ACWC - Manual (Page 11)

Cobra ® MX Owner's Manual - Page 3
Retract the screw accordingly until the system is deactivated and adjusted to
the operators' liking.
Drive Roll and Idler Rolls
General
The Cobra ® MX gun comes standard with a knurled drive roll and a grooved
idler roll, which will handle both hard wire (.030 - .045 inch) and aluminum
wire with diameters from .030-1/16 inch. Optional insulated V-groove drive
rolls are also available for aluminum wire if desired (see optional kits).
Drive roll tension is accomplished with a unique spring-loaded pressure
screw. The Cobra ® MX comes from the factory with the pressure adjustment
screw preset. NO ADJUSTMENT IS REQUIRED FOR ALL SIzES
AND TyPES OF WIRES .
Drive Roll Installation/Removal
Note: Neither of the handles needs to be removed to access the drive or
idler rolls.
1. Pull the cam lever away from the idler roll.
This will relieve the pressure against the
drive roll (as shown in Figure 1).
2. Align the drive roll removal tool (P/N 931-
0100) over the flats of the drive roll (as
shown in Figure 2). Hold the gun with one
hand or on a table top, with the other hand
give the removal tool a quick snap-turn in
the CLOCKWISE DIRECTION.
3. Once the drive roll is loose, continue to
spin drive roll in the clockwise direction to
remove the drive roll from the gun.
4. Install a new drive roll on the left-hand threaded shaft. The drive roll will
self-tighten when it is feeding wire.
Idler Roll Installation and Removal
(Reference Figure 3)
1. Using a slot type screwdriver, loosen idler screw, taking care not to lose
lock washer under idler roll.
2. Insert new idler roll and lock washer onto screw, insuring that idler groove
is toward top and lock washer is beneath.
3. Tighten.
NOTE: Lock washer must be under idler roll or it will not turn freely.
Cam Lever
Figure 2
Figure 1
Figure 3