HP Designjet 3D Service Manual page 401

Service Limit
6. If the tension is not within specification, remove the front panel to gain
access to the tensioning nuts.
7. Next loosen, but do not remove, the 4 Y-Drive Belt clamp screws. Check
that the belt is clear of the clamp before adjusting the tension. Note:
There is one clamp per Y belt.
8. Locate the Y belt tension adjustment nut on the front of the system.
ure 400)
9. Adjust (increase/decrease) the tension by turning the tensioning nut
ure 400) so that the dial indicator reads between 25 and 35.
Figure 400: Y drive belt tension adjustment
Y-Drive Belt
Tension
Adjusting
Nut
10. Remove the belt fixture and move the head forward and back across the
gantry several times.
1 1. Reattach the belt tension gauge and recheck the tension.
12. Continue to adjust and check the tension until the tension meets specifi-
cation.
13. Tighten the 4 Y-Drive Belt clamp screws. (One clamp per Y belt).
14. Reinstall the top, front and side panels.
Figure 399: Gauge readings
Adjustment Limit
(Figure 398)
(Fig-
(Fig-
-385