Conveyor Belt Changing; V-Belt Tensioning; V-Belt Replacement; Maintenance And Inspection - Jet JBS-22 Mode D'emploi

Fig 22
The Trackers are due to wear and can
be reversed.
Tracker Kit (2 pieces)
Jet Art. No.: 98-0080
Note:
There will be increased wear during
the break in time, which may white
mark the conveyor belt.
This has no negative effect to the
machine function.
Please assure to keep the belt tension
as low as possible until the belt and
ceramic guide blocks are worn in.
Note:
Make sure the conveyor bed is not
twisted, place a level on the conveyor
bed to check.
Check the conveyor drive roller to
make sure it is parallel to the surface
of the conveyor bed (Fig 23).
Fig 23
If not, loosen and adjust the bracket
that hold the roller in place.

7.8 Conveyor belt changing

Disconnect the machine from the
power source (pull mains plug).
Unplug the motor cord form the
control box.
Relieve the conveyor belt tension.
Remove four bolts attaching conveyor
assembly to the base.
Lift up and slide conveyor unit out to
the side of the machine.
Slide conveyor belt off the end of the
conveyor.
Reverse process for installation.

7.9 V-belt tensioning

Loosen the pinch-bolt (G, Fig 24) and
lower the motor (H) by its own weight
only.
Fig 24
Make sure the motor stays aligned.
Tighten the pinch-bolt (G).

7.10 V-belt replacement:

Disconnect the machine from the
power source (pull mains plug).
Remove the plastic belt guard (F).
Remove the bevel gear (I, Fig 25) and
loosen the collar (K).
Fig 25
Slide the transmission rod (J) to the
left.
10
Loosen the pinch-bolt (G) and rise the
motor (H).
Install new V-belt and lower the motor
by its own weight only.
Make sure the pulleys are aligned.
Tighten the pinch-bolt (G).
Replace transfer rod, bevel gear and
collar.
Install the belt cover (F).

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.
Check brush regularly for faults.
Replace a defective brush-drum
immediately.
Inspect the conveyor belt tracking
regularly.
Monthly lubricate all moving parts,
such as threaded rods, washers and
bushings.
Clean the machine regularly.
Inspect the proper function of the dust
extraction daily.
Defective safety devices must be
replaced immediately.
All protective and safety devices must
be re-attached immediately after
completed cleaning, repair and
maintenance work.
Repair and maintenance work on the
electrical system may only be carried
out by a qualified electrician.

9. Trouble shooting

Motor doesn't start
*No electricity-
check mains and fuse.
*Defective switch, motor or cord-
consult an electrician.
Conveyor belt stops
*Improper belt tension-
Adjust belt tension.
*Shaft coupling loose-
Align shaft flats of gear motor and
tighten shaft coupling set screws.
Board slips on conveyor belt
*Dirty or worn conveyor belt-
Clean or replace conveyor belt.