Instruction manual

146
Chapter 5 Section I: Replacement Procedures
Belt, Paper Feed Timing
Removal
1. Prepare the printer for maintenance (page 106).
2. Cabinet Models: Remove the paper path (page 177).
Pedestal Models: Remove the top cover assembly (page 161).
3. Cabinet Models: Loosen four screws and remove the barrier shield.
(See page 214, items 3, 4, and 9.)
Pedestal Models: Loosen four screws and remove the paper guide and
barrier shield. (See page 216, items 3, 4, and 5.)
4. Remove the timing belt cover by squeezing the front and back to release
the plastic tabs from the slots in the side plate. (See page 214, item 7.)
5. Loosen the 7/64 inch setscrew in the paper feed motor pulley collar. (See
page 230, item 8.)
6. Loosen (do not remove) the two 5/16 inch paper feed motor mount
screws. (See page 230, item 10.)
7. Remove the paper feed timing belt by sliding the paper feed motor pulley
off the motor shaft and the belt off the splined shaft pulley.
Installation
1. Install the paper feed timing belt over the splined shaft pulley and the
motor pulley and collar. Slide the motor pulley and retaining collar onto
the paper feed motor shaft.
2. Holding a 0.040 inch feeler gauge between the pulley collar and the motor
body, torque the 7/64 inch collar screw to 25
± 2 inch-pounds (2.82 ±
0.23 N•m).
3. Using the straight end of a force gauge, apply 15 pounds (66.7 N) of
pressure to the paper feed drive motor. Use the splined shaft to steady
the gauge.
4. Reduce tension to 12 pounds (53.4 N) and torque the 5/16 inch paper
feed motor mount screws to 18
± 2 inch-pounds (2.03 ± 0.23 N•m).
5. Snap the timing belt cover into the slots in the side plate. (See page 214,
item 7.)
6. Cabinet Models: Install the barrier shield and tighten the four screws.
(See page 214, items 3, 4, and 9.)
Pedestal Models: Install the barrier shield and paper guide and tighten the
four screws. (See page 216, items 3, 4, and 5.)
7. Cabinet Models: Install the paper path (page 177).
Pedestal Models: Install the top cover assembly (page 161).
8. Return the printer to normal operation (page 107).