13
5. After making this adjustment, be sure to re-
check other blade adjustments as noted in this
manual.
7.10
Auto shut-off adjustment
The saw is properly adjusted when blade shuts off
just after cut completion. To set this:
If saw completes cut but blade continues
moving, adjust switch trip (P, Figure 21)
downward.
If blade stops before cut is complete, adjust
switch trip (P) upward.
If blade stops descending and continues
running without completing the cut, turn stop
bolt (Q) down.
Figure 21
7.11
Vise adjustment
Use handwheel (R, Figure 21) to open and close
vise.
Vise can be adjusted for square and miter cuts.
Loosen hex cap bolts and adjust vise for the cut.
Slightly loosen screw on floating vise (14mm
wrench) to allow it to conform to tapered or irregular-
shaped pieces. Then tighten screw before
operating.
A scale on back side of bed aids in positioning vise
for 90° cuts or a particular miter.
TIP:
Always verify
vise position by using a square against blade and
vise.
7.12
Vertical stop adjustment
The stop screw (Figure 22) can be adjusted to
ensure bow is at 90-degrees when using vertical
cutting plate.
Figure 22
8.0
Operation
8.1
Blade break-in
New blades are very sharp and, therefore, have a
tooth geometry which is easily damaged if a careful
break-in procedure is not followed. Consult the
blade manufacturer’s literature for break-in of
specific blades on specific materials. However, the
following procedure will be adequate for break-in of
JET-supplied blades on lower alloy ferrous
materials.
1. Clamp a round section workpiece in the vise.
The workpiece should be 2 inches or larger in
diameter.
2. Set the saw on low speed. Start the cut with a
very light feed rate.
3. When the saw has completed 1/3 of the cut,
increase feed rate slightly and allow saw to
complete the cut.
4. Keep the same hydraulic cylinder setting and
begin a second cut on the same or similar
workpiece.
5. When blade has completed about 1/3 of cut,
increase feed rate. Watch chip formation until
cutting is at its most efficient rate and allow saw
to complete the cut (see
sect. 8.3, Evaluating
cutting efficiency
).
6. The blade is now ready for regular service.
8.2
General operating procedure
1. Raise bow and secure in position using support,
as shown in Figure 21.
Always secure bow in
raised position with support plate before
loading material. Never start a cut with blade
contacting workpiece.
2. Position workpiece in vise and tighten vise.
Workpiece should be fitted directly between
jaws without adding other objects. When
workpiece is profiled section, flat piece or
special shape, refer to examples in Figure 23
for proper clamping positions.
Содержание HVBS-56
Страница 17: ...17 11 1 1 HVBS 56 Bow Assembly Exploded View...
Страница 18: ...18 11 1 2 HVBS 56 Bed Assembly Exploded View...
Страница 23: ...23 12 0 Electrical Connections HVBS 56 Band Saw...