DoAll 500SNC, Instruction Manual

Page: 19 / 35

15
Saw Guide Insert Adjustment
1. Adjustment screws for the saw guide inserts are
located on the lower portion of each saw guide
arm.
Saw Guide Detail.
2. Follow these adjustment procedures: (a) Turn the
adjustment screw clockwise until the fixed and the
movable inserts are tight against the saw band (do
not tighten further) ; (b) Turn the adjustment screw
back counterclockwise a 1/4 turn.
Saw Band Removal
Always use extreme care when handling saw
bands. Wear gloves.
1. Press the Band/Cycle Stop key. Then: (a)
Raise the saw head to a position where there is
space under the saw guide arms and clears the
front vise clamp cylinder. (b) Turn the head swivel
clamping handle clockwise to "LOCK" the saw
head in place; (c) Turn the band tension handwheel
counterclockwise (this moves the idler bandwheel
to the right and loosens band tension).
2. Open the right and left bandwheel doors. Then: (a)
Remove or reposition the band brush, if necessary;
(b) Loosen and remove the right and left blade
guards; (c) Loosen the saw guide inserts by turning
both adjustment screws counterclockwise .
3. Place your gloved hand on the non-cutting edge of
the saw band between the saw guide arms. Then:
(a) Push the saw band downward to free it from the
saw guide inserts; (b) Grasp the saw band near the
idler bandwheel and remove it, then remove the saw
band from around the drive bandwheel; (c) Work the
saw band's upper strand through the upper blade
guard above the saw guide arms; (d) Move the saw
band down and under both saw guide arms.
Immediately store or dispose of the old or
broken saw band. If possible, recoil the saw
band into the original holder before scrapping
it.
Saw Band Installation
Always use extreme care when handling saw
bands. Wear gloves.
1. Remove the old or broken saw band as described in
the previous section. Clean metal chips and other
foreign materials and debris from around the saw
guides and both bandwheels.
2. Form the saw band into one large loop. Then:
(a) Slip the saw band under the saw guide arms
and into approximate position for placement; (b)
Work the saw band into the upper blade guard. (c)
With the saw band's teeth facing towards you, slip
the looped saw band around the drive and idler
bandwheels.
3. Twist the saw band 90° so that its teeth between the
saw guide arms point down and to the right. Then:
(a) Insert the saw band into the saw guide inserts
and pull up against the back-up bearing; (b) Check
the saw band's position around the bandwheels (its
back edge must rest against each bandwheel's rear
flange).
4. Apply correct band tension by turning the band
tension handwheel clockwise . Then: (a) Remove
the new saw band's protective cap; (b) Turn the saw
guide insert adjustment screws clockwise until tight
(do not over tighten) ; (c) Turn each adjustment
screw back counterclockwise a 1/4 turn. (d)
Reposition or mount the band brush and reinstall
both blade guards; (e) Close both bandwheel
doors.
Band Tension Handwheel
1. Band tension is applied by turning the handle which
protrudes from the saw head's right side. Turn the
handwheel clockwise to "increase" band tension;
counterclockwise to "decrease" it.
SAW BAND PREPARATION (Continued....)