Jet HVBS-56V, Руководство по эксплуатации

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6.2 Extension cords
The use of extension cords is discouraged; try to
position machines near the power source. If an
extension cord is necessary, make sure it is in good
condition. When using an extension cord, be sure to
use one heavy enough to carry the current your
product will draw. An undersized cord will cause a
drop in line voltage resulting in loss of power and
overheating. Table 2 shows correct size to use
depending on cord length and nameplate ampere
rating. If in doubt, use the next heavier gauge. The
smaller the gauge number, the heavier the cord.
Ampere
Rating
Volts Total length of cord in feet
More
Than
Not
More
Than
120 25 50 100 150
AWG
0 0 0 6 18 16 16 14
0 6 10 18 16 14 12
10 12 16 16 14 12
12 16 14 12
Not
Recommended
Table 2: Extension cord recommendations
7.0 Adjustments
Disconnect band saw from
power source before making adjustments.
7.1 Tools required for adjustments
(Not all may be needed depending on adjustment.)
Wrenches 12,14,16mm
Hex wrench 4mm
Square
Straight edge
Small clamp
7.2 Blade guide adjustment
1. Disconnect band saw from power source.
2. Loosen handle (B, Figure 7-1) and slide left
blade guide assembly (C) as close as possible
without interference to material being cut.
Tighten handle.
3. Loosen bolt (D) and slide right blade guide
assembly (E) as close as possible to cutting
area, without interference with bed casting.
Tighten bolt. (Once the right blade guide
assembly is properly positioned, it can
generally remain in that position for all
operations.)
Figure 7-1
7.3 Blade tension
1. Disconnect band saw from power source.
2. Open blade cover by removing knob and 2
screws (G, Figure 7-2). Observe position of
blade on wheel. If blade is not adjacent to wheel
flange, first adjust blade tracking according to
sect. 7.6, Blade tracking, then proceed to step
3.
3. Turn blade tension handle (F, Figure 7-2)
clockwise to tighten blade. Pluck the blade with
your finger; a tensioned blade will emit a
“twang” sound.
For precise measurement, use a blade tension
gauge (not provided). Hard-back blades are
generally tensioned at about 25,000 PSI (1757
kg/cm
2
); bi-metal blades at about 35,000 PSI
(2460 kg/cm
2
).
4. Perform cutting operations with the saw, and
make further tension adjustments as deemed
necessary. As experience with the saw is
gained, the operator should develop a better
“feel” for how tight to set a particular blade. Tick
marks can be made on tension knob for quickly
resetting tension when re-installing a blade.
7.4 Blade changes
1. Disconnect band saw from power source.
2. Raise bow to vertical position, and open back
blade cover.
3. Remove red blade guards.
It is essential these red
guards be installed after new blade has been
fitted. Failure to comply may cause serious
injury.
4. Release tension on blade by turning tensioning
knob (F, Figure 7-2). Slide blade off wheels.
5. Place new blade between blade guide
assemblies and around each wheel. Make sure
blade teeth are pointing in proper direction (see
Figure 7-3).