Tracking Adjustment - Palmgren 9683314 Operating Manual & Parts List

Palmgren Operating Manual & Parts List
OPERATION (CONTINUED)
REPLACING THE BLADE
• Make sure the outer guide bearings are loose.
• Make sure the teeth are pointing in the right direction (See
Figure 10).
Figure 10 – Blade Direction
• Place the blade around the wheels and between the guide
bearings.
• Hold the blade in position and apply tension. Blade tension
generally must be set at 25000 psi for hard back blades, and
35000 psi for bi-metal blades. Use tension scale (Figure 17, Ref.
No. 56).
• Push the blade against the wheel flange.
• Tighten the blade until it is properly tensioned. A properly
tightened blade will ring slightly when the back of the blade is
plucked (like a string of an instrument).
• Adjust the outer guide bearings.
• Check for proper tracking (See Tracking Adjustment).
TRACKING
Proper tracking is achieved when the drive wheel and tracking
wheel are aligned. A blade that is not tracking correctly can come off
the blade wheels. Although adjustment is rarely required, tracking
should be checked frequently.
CAUTION:
Turn motor off and disconnect power to check tracking.
CHECK TRACKING
• Prop open the blade wheel covers.
• Insert a piece of paper between the blade and the lower portion
of the tracking wheel.
• Open the pulley cover and rotate the blade by turning the motor
pulley.
• Let the blade grab the paper. Rotate the pulley so the paper goes
around the wheel.
• Refer to Figure 11 to determine if an adjustment is needed.
A sharp fold indicates
proper tracking.
Cut or ripped paper indicates
that the blade is riding against
the flange of the wheel.
Adjusting bolt needs to be
turned counterclockwise.
No fold indicates the blade
will ride off the wheel.
Adjusting bolt should be
turned clockwise.
Figure 11 – Tracking Adjustments

TRACKING ADJUSTMENT

Refer to Figures 10, 11 and 17.
The tracking is adjusted by positioning the idler wheel shaft (Ref. No.
61). The positioning is done with the hex head bolts (Ref. No. 58) only
if the upper socket head bolts (Ref. No. 60) are loose.
• Loosen the three socket head bolts.
• Adjust the tilt with hex head bolts. For correct tracking, refer to
Figure 11. Turn 1/4 revolution at a time.
• Check the blade tension and adjust if necessary.
• Recheck the tracking.
• Once the proper position has been found, tighten the bolts
securely.
BLADE SPEED
Refer to Figures 12 and 17.
Choosing the proper blade speed is important for extending the life
of the blade. The speed determines the available cutting force.
• Harder materials require more force and are cut at a slower
speed.
• Softer materials are cut with less force at higher speeds to ensure
the proper removal of the chips.
• The speed and corresponding force are related to the power
supplied to the blade. Four speeds are available.
• If a motor, other than the one supplied is used, the cutting
conditions will be changed. Four speeds are available.
• Speed is changed by moving V-Belt (Ref. No. 36) to one of the
four pulley positions. Speeds and corresponding pulley
configurations are illustrated below.
82
132
170
235
Figure 12 – Speed and Pulley Diagram
FPM
82 . . . . . . . . . . . . . . . . . . . . . . Stainless steel, bearing bronze, alloy steels.
132 . . . . . . . . . . . . . . . . . . . . . .Medium to high carbon steels, hard brass.
170 . . . . . . . . . . . . . . . .Low to medium carbon steels, soft brass, copper.
235 . . . . . . . . . . . . . . . . . . . . . . . .Aluminum, plastic, other light materials.
CHANGING BELT POSITION
Refer to Figure 17.
• Remove knob (Ref. No. 30) from pulley cover (Ref. No. 31)
• Open pulley cover. Loosen socket head bolt (Ref. No. 45).
• Move the belt to the desired position.
• Tighten the socket head bolt to tension the belt. Belt is tensioned
properly when a moderate pressure applied to the belt between
the pulleys produces a 1/2" of deflection.
• Secure pulley cover with knob.
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