Maintenance And Inspection - Jet PROMAC 349V Operating Instructions Manual

40 - 50 m/min (Position 2-3)
for mild steel, hard brass or bronze.
60 - 80 m/min (Position 4-6)
for soft brass, aluminium or other light materials.
Saw blade lubricant
The lifetime of the saw blade can be extended significantly
by lubricating it with stick wax item no. 2168.
7.7 Changing the saw blade
ATTENTION:
Before opening the saw blade cover disconnect the
machine from the power source.
Raise saw head in vertical position and open the guards.
Loosen blade-tension knob sufficiently to allow the saw
blade to slop off the wheels.
Install the new blade with teeth slanting toward the motor
Place the blade in between the guide bearings (D, fig 10).
Tighten the blade tension knob.
Make sure the blade locates against the wheel shoulder.
Reattach all covers and check the run of the saw blade by
starting the machine with caution.
7.8 Rounding of teeth
A carefully broken in blade lasts much longer and gives
better performance.
To break in your new blade, run it at only 30% of normal
pressure for ten minutes.
Then gradually increase to normal pressure.
Fig 10
Fig 11

8. Maintenance and inspection

General notes:
Maintenance, cleaning and repair work may only be
carried out after the machine is protected against
accidental starting by pulling the mains plug.
The maintenance schedule has been divided into daily,
weekly, monthly and six-monthly intervals. Neglecting the
machine maintenance will result in premature wear and
poor performance.
Daily maintenance
- General cleaning of the machine to remove accumulated
shavings.
- Check blade for wear.
- Rise of saw frame to top position and partial slackening of
the blade to avoid useless yield stress.
- Check functionality of the shields and emergency stops.
Weekly maintenance
- Lubrication of blade tension screw
- Lubrication of vise screw and vise guides
- Cleaning of saw blade guides
Monthly maintenance
- Check the tightness of all screws.
- Lubricate the bolts of the arm hinge.
Semi annual maintenance
Lubricate the gearbox.
The gears are manufactured of special steel to assure a
long life.
To achieve maximum machine life, we recommend to
lubricate the gears every 100 operating hours.
Disconnect the machine from the power source.
Remove the blade cover and the saw blade.
Remove the wheel bolt.
Remove the hinge and lubricate the gear wheel with high
quality oil (BLASOLUBE 304 or similar).
Remount the hinge and retighten the wheel bolt.
Remount all covers and guides.
Special maintenance
Special maintenance operations must be carried out by
skilled personnel. However, we advise contacting dealer
and/or importer the term special maintenance also covers
the resetting of protection and safety equipment and
devices.
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