Idler Wheel Check/Adjustment - HP Designjet 3D Service Manual

Figure 410: Wheel alignment check 2 of 2
5. Move the Toggle Bar to the right.
6. Loosen the Heater Block Clamp screws and the Heater Block Mount
screws.
7. Remove the Alignment Rod.
8. Install the right side Pivot Block.
a. Make sure the Shim is installed (it normally remains on the pin when
the Pivot Block is removed).
b. Install the teflon washer and retaining clip.

Idler Wheel Check/Adjustment

This procedure adjusts the amount of tension that the Idler Wheels apply to
the filament.
1. Rotate the Drive Wheel so that the set screw head is on the bottom of the
Wheel (Figure 41 1).
2. Check/Adjust the Right (Model) side Idler Wheel clearance:
A. Place the Toggle Bar in the full Left position.
B. Check the clearance between the Drive Wheel and the
Idler Wheel - a .003 inch feeler gauge (shim stock) should
have a light drag when placed between the Drive Wheel
and the Idler Wheel.
C. Place the Toggle Bar in the Neutral position (half way
between full Left and full Right).
D. Insert a .005 inch feeler gauge between the Drive Wheel
and the Idler Wheel.
E. Return the Toggle Bar to the full Left position - the .005 inch
feeler gauge should be firmly held between the Drive
Wheel and the Idler Wheel.
(Figure 41 1)
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