Turns out this was not the manual i was looking for. The concertmate 670 keyboard i have is a "Realistic" model made for Radio Shack and none of the diagrams on the owners manual i received matches up. HOWEVER, I must say the service Owners Manual provides was fast and efficient by being available online. The manual was in good readable condition and easily downloaded.
Thank´s for your help, I already recived these manual from you
Text excerpt from page 28 (click to view)
E
MAINTENANCE
Adjustment of the cutting unit�s parallelism
Adjustment of Rider 850 1. Dismantle the front hood and right-hand fender as described on page 20. 2. Vertical adjustment of the cutting unit is made with the adjusting nuts on the back edge of the lift-strut. 3. Raise the cutting unit at the front edge by shortening the lift-strut. Lower the cutting unit at the front edge by lengthening the lift-strut. 4. Tighten the nuts against each other after the adjustment. 5. On completion of the adjustment the unit�s parallelism should be re-checked. Fit the right-hand fender and the front hood.
2
Adjustment of Rider 970 1. Dismantle the front hood and right-hand fender as described on page 20. 2. Release the strut by pulling out the rear pin (1). Lift the rear edge of the hood to relieve the parallel strut. 3. Release the lock-nut (2). 4. Screw out the fork (3) to raise the front edge of the hood. Screw in the fork (3) to lower the rear edge of the hood. 5. Tighten the lock-nut after adjusting. 6. On completion of the adjustment the unit�s parallelism should be re-checked. Fit the right-hand fender and the front hood.
