Troubleshooting - jet promac 378VBC Bedienungsanleitung

4. Trouble – Shooting;
Warning: Switch off power and remove plug from power
source outlet before trouble shooting.
NO. SYMPTOM
1. Push emergency button
2. Turn off the power
3. Use hand to turn the spindle
Drill insert in
working
1 piece and
spindle shaft 4. Suction the chip on the hole.
stop 5. Turn on power again.
6. Adopt slowly feed make sure
1. Check the belt tension
Spindle shaft
can not 2. If belt tension is too loose,
2
running
completely
quantity.
1. Check the power and switch
Motor do not 2. Check the power cable is
3
work
1. Check bearing
2. Check V – belt, if tightly
Spindle shaft
4
has noise
1. Check chuck condition
Drill
5 2. Make sure the drill is properly
oscillation
5. Maintenance:
Warning: Switch off power and remove plug from power
source outlet before maintenance.
DISPOSITION
shaft countermarch. Let the
tool withdraw from the
working piece.
in normal condition then
recovery the normal feed.
condition
adjust the belt shifter,
otherwise change the aging
belt.
damaged or not if cable is
broken, change it directly.
degree over specific tension
will cause noise.
fixed in the chuck.
1 Month oil
Everyday
3 Month
5-1. Feed Shaft Spring Tension:
The feed shaft return spring is adjusted at the factory;
however, during the life of the drill press you may want to
adjust the feed shaft return spring so the feed shaft
return pressure suits your operating needs.
To adjust the feed shaft spring tension:
1. UNPLUG THE DRIL PRESS!
2. Wipe off any oil on the spring lock cover so it does
not slip in your fingers when you hold the cover from
spinning (see Figure 16).
3. While holding the spring lock cover against the side
of the head stock so the cover stays splined with the
locking lug; loosen the jam nut and loosen the cover
nut approximately 1.4" (see Figure 18).
4. Put on heavy leather gloves to protect your hands
from possible lacerations if the spring uncoils during
the next step.
5. Pull the cover outward just enough to disengage the
spring-cover lock slot from the locking lug. Note: It is
important to keep a good grip during this step. Letting
go of the cover will cause the spring to rapidly uncoil.
6. Rotate the cover counterclockwise to increase spring
tension, or let the cover slowly unwind in the
clockwise direction to reduce spring tension.
7. Engage the next available spring-cover lock slot with
the locking lug and hold the spring lock cover tightly
against the side of the headstock.
8. Snug the cover nut against the spring cover just until
8
ISO 68 NLGI #2
LUBRICANT grease
1 Month
1 week