Product Manual

9
7.0 Adjustments
Disconnect machine from
power source before making adjustments,
unless indicated otherwise.
7.1 Blade installation and removal
Refer to Figure 7-1.
Always wear leather gloves
when handling blades to avoid injury.
A blade (1-1/4 in. W x 172 in. L) is pre-installed and
tensioned on saw. To replace blade:
1.
Raise bow about 15-degrees and keep it in
raised position by turning feed rate control
knob clockwise all the way
(see sect. 8.0).
2. Disconnect machine from power source.
3. Open both wheel covers (A, Figure 7-1) and
clean out any swarf from wheel areas
.
4. Remove red blade guards (B).
5. Back off the blade guides by loosening knob (H,
Figure 7-2). Back off the wire chip brush.
6.
Release blade tension by turning blade
tension handwheel (C) counter-clockwise.
7.
Remove blade from both wheels and out of
each blade guide.
8. Make sure teeth of new blade are pointing in
direction of travel. If necessary, turn blade
inside out.
9. Position new blade around wheels and through
upper slot. Slide it into blade guide bearings
with back edge of blade contacting backup
bearing. (see Figure 7-2). For further guide
bearing adjustment, see sect. 7.3
10. Lightly increase tension (C) and position blade
so it rests against shoulder of both wheels.
11. When blade is properly positioned, place full
tension upon it (see sect. 7.4.1).
12. Reinstall blade guards (B).
13. Adjust chip brush up against blade teeth.
14. Jog the start/stop buttons to ensure blade is
tracking properly. If tracking adjustment is
needed, see sect. 7.4.2.
15. Close wheel covers.
Figure 7-1: blade changing
7.2 Guide post adjustment
The blade guide posts (D, Figure 7-1) must be set
to just clear the workpiece, but should not interfere
with workpiece or other saw components during
bow’s descent.
Loosen knobs and slide posts into position. Always
tighten knobs before operating machine.
7.3 Blade guide adjustment
The bearing and carbide guides come pre-adjusted
from the factory for the installed blade. If adjustment
is needed, or if a blade is replaced, follow the below
steps for left and right guides.
Refer to Figures 7-2 and 7-3.
1. Disconnect machine from power source.
2. To adjust eccentric bearings, loosen hex socket
cap screw (K
1,
Figure 7-2) about one full turn.
3. Turn hex nut (K
2
) with wrench until ball bearings
are approximately 0.003” from blade. Note: Do
not pinch blade.
4. Tighten hex socket cap screw (K
1
) while holding
hex nut (K
2
) in place.
5. Repeat for other blade guide assembly.
Figure 7-2: blade guide bearing adjustment
6. Turn knurled knob (L, Figure 7-3) to adjust
carbide top (M
1
) and side (M
2
) guides. Guides
should place light pressure on blade. Do not
overtighten.