TM 9-3405-215-14&P
SPIRAL SAW BAND GUIDES
(4) Bring rollers into contact with band by turning
eccentric shaft with a screwdriver.
Required when using spiral bands having a 360 degree
cutting edge. These bands are for sawing intricate
NOTE
contour patterns without turning workpiece. It can be
Bearings will overheat it rollers are
used on such materials as plastics, woods, and light
too tight against band. Band may
gage metals. Set up as follows:
wobble if rollers are loose.
(1) Install saw guides and band. Proper tension is
(5) Tighten roller lock screws so eccentric shaft will not
same as for a 1/16-inch (1.6 mm) wide carbon saw
turn.
(2) Adjust upper wheel tilt until band rides freely in roller
grooves.
Rollers have ball bearing mountings
grooved for accurate band guidance.
(3) Each guide has an eccentric shaft roller. Adjust
eccentric by loosening guide block set screw. Turn
eccentric with a screwdriver until band rides both
roller groove bottoms. Band cutting edges should
be facing down to table when band revolves.
FIG. 27. ROLLER GUIDES ALLOW CONTINUOUS
HIGH-SPEED SAWING.
INSERT-TYPE SAW GUIDES
FIG. 26. SPIRAL SAW BAND GUIDES.
These high-speed, insert-type saw guides are designed
for sawing speeds up to 5000 fpm (1500 m/min). Be
ROLLER SAW BAND GUIDES
sure inserts match band width. Guides are installed and
Use roller guides for continuous high speed sawing.
adjusted like regular insert-type saw guides.
Adjust them as follows:
If bearings need replacing, remove snap ring. Pull out
(1) Install guides on upper post and lower keeper block.
carbide bearing shaft and remove bearings. Install new
bearings with a light press fit, insert carbide bearing and
snap ring. Bearings are sealed and packed for life with a
(2) Select correct rollers for band width. Place one
lubricant.
back-up roller and one side roller in each block.
(3) Install band and adjust tension.
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