OARTEC DX User manual

Oartec DX Service Manual
Adjusting the Bottom Roller Wheels
Frequency: As required – check adjustment regularly.
Tools required: 4mm & 5mm Allen Key, 13mm/16mm wrench
Check regularly the adjustment of the bottom roller wheels for optimal performance and prolonged life of the
wheels and rail coating. The dynamic frame should be free to move back and forth quite easily. If the moving unit
becomes loose, or wobbly then tuning the bottom roller adjustment is necessary.
Follow the steps outlined below to get the best perfomance from your DX.
1. Using the 5mm allen key, loosen both front and rear
wheel axle bolts on the left hand and right hand side
plates. Loosen bolts about a 1/2 to 3/4 turn.
3. Repeat loosening procedure in Step 2 for the
front roller adjuster .
4. Using just the 4mm key, loosen both front and
rear rollers in an anticlockwise direction until the
front assembly moves loosely along the rails.
2. Locate the adjuster bolts on the underside of the
front assembly. Insert the 4mm allen key into the socket
of the rear adjuster bolt and while holding steady in
position, use the 13mm end of the 13mm/16mm wrench
to loosen in a clockwise direction, the roller adjuster
locking nut about a 1/2 turn.

Adjusting the Bottom Roller Wheels
6. Test the movement of the front assembly along
the rails. It should move freely along the rails but
tight enough to have a stable connection to the rails.
Make small adjustments to tighten or loosen the roller
tension.
8. Repeat the same process in steps 5, 6 and 7 for
the front rollers.
TIP: The front rollers can be adjusted slightly looser
than the rear rear rollers.
9. Test row the DX after adjustment and adjust
tuning again if necessary. Finally, tighten the axle side
bolts on both side of the front assembly.
5. Starting with the real roller adjuster, use the 4mm
allen key to turn the adjuster bolt in a clockwise
direction. Tighten the rollers until they make firm
contact with the rails.
TIP: Do not over tighten the adjustment. The
frame should roll freely without excessive friction.
Overtightening will cause the rolling frame to be
slow and require extra eort to return the machine
during the recovery.
7. Lock the rear roller adjuster by inserting and
holding the 4mm key in a steady position in the
adjuster bolt. If the adjuster bolt turns while
tightening it will alter the adjustment. Using the 13mm
wrench, tighten the locking nut in an anticlockwise
direction.