34 SpeedCut
Adjustment & Repair
1. Adjust MQL Fluid/Air Mix
a.) If lubrication does not appear to be applied to blade as mixed mist and spray, the
Fluid Controls and/or Air Controls may need to be adjusted. Both sets of controls
are located behind the MQL cover.
NOTE: MQL Lubrication System arrives pre-optimized.
b.) Proper settings should be as follows:
Fluid Control (2 metering pumps) turned in fully clockwise.
Air Control (2 needle valves) each turned out one (1) half turn from seated position.
2. Adjust Wheel Pitch
a.) De-energize circuit. Tag ‘OUT OF SERVICE’.
b.) Loosen blade tension. NOTE: MOST WHEEL ADJUSTMENTS CAN BE MADE BY
ADJUSTING THE IDLE END WHEEL PLATE FIRST.
c.) Loosen and tighten opposing wheel pitching screws ½ turn as required to change
blade tracking on wheel.
d.) Re-tension blade.
e.) Energize and run blade to verify that blade tracks on wheel properly, touching wheel
flange but not rubbing.
f.) Remove safety tag.
3. Adjust Blade Micro-Switch Assembly
a.) To check operation of the switch, remove control
cover. Now turn off the feed valve and press the
“Lower” button with the operation selector in setup.
The LED light should be on. Depress the switch
plunger and the lower light should go off.
b.) If the LED light did not go on when the FRAME
LOWER button was pushed, check to see if stud
is holding the switch plunger in.
c.) If the stud is holding the switch plunger in check
for sticking mechanism then adjust the stud
to activate the switch with .006 gap.
d.) If the stud is not holding the switch plunger in and
the LED light does not come on when the FRAME
LOWER button is pushed, then the switch will need
to be replaced. To verify this condition, check the switch with a continuity light.
Blade Force Settings
Position
Number
lbs of force to
close solenoid
1
110
1.5
120
2
130
2.5
140
3
150
3.5
160
4
170
4.5
180
5
190
5.5
200
Summary of Contents for SpeedCut SCT78
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