HP LaserJet Enterprise 500 Maintenance Manual - Page 178

lpm models only: set shuttle speed if original shuttle frame assembly

Page 178 highlights

Chapter 6 Section I: Replacement Procedures Caution Caution Installation 1. Install the hammer bank / ribbon mask cover assembly if it was removed (page 139). To prevent electrostatic damage to electronic components, wear a properly grounded static wrist strap when you handle the shuttle frame assembly. Do not remove the grease from the shaft of the replacement shuttle frame assembly. The shuttle shaft is aluminum, and the clamped ends of the shaft must be greased to prevent galling. 2. Open the forms thickness lever and move the tractors as far left and right as possible. 3. Holding the shuttle frame assembly by the support legs cast on both sides of the shuttle motor, set it into the base casting. Use both hands: the shuttle frame assembly is heavy (page 198). 4. Align the center 5/32 inch socket head screw in the base casting and hand turn the screw until only two or three threads have started. 5. Pull the shuttle frame assembly toward the front of the printer and hold it in this position while you do step 6. Do not over-tighten the shuttle frame assembly clamp screws. 6. Slide the side clamps over the guide shaft and tighten the 5/32 inch socket head clamp screws. 7. Tighten the center captive 5/32 inch socket head screw. 8. Connect the hammer drive and hammer logic cable connectors to the terminator board on the shuttle frame assembly. 9. Connect the shuttle motor cable connector. (See page 202, item 6.) 10. Route the MPU cable under the extension spring and connect the MPU cable connector. (See page 202, item 5.) Make sure the MPU cable does not touch the extension spring after it is connected. 11. If the shuttle assembly is a new or refurbished unit, adjust the platen gap (page 110); otherwise, skip to step 12. 12. Install the shuttle cover assembly (page 141). 13. 500 lpm models only: set shuttle speed if original shuttle frame assembly was replaced (page 123). 14. Adjust the hammer phasing (page 121). 15. Return the printer to normal operation (page 101). 178

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178
Chapter
6
Section I: Replacement Procedures
Installation
1.
Install the hammer bank / ribbon mask cover assembly if it was removed
(page 139).
2.
Open the forms thickness lever and move the tractors as far left and right
as possible.
3.
Holding the shuttle frame assembly by the support legs cast on both sides
of the shuttle motor, set it into the base casting.
Use both hands: the
shuttle frame assembly is heavy
(page 198).
4.
Align the center 5/32 inch socket head screw in the base casting and
hand turn the screw until only two or three threads have started.
5.
Pull the shuttle frame assembly toward the front of the printer and hold it
in this position while you do step 6.
6.
Slide the side clamps over the guide shaft and tighten the 5/32 inch
socket head clamp screws.
7.
Tighten the center captive 5/32 inch socket head screw.
8.
Connect the hammer drive and hammer logic cable connectors to the
terminator board on the shuttle frame assembly.
9.
Connect the shuttle motor cable connector. (See page 202, item 6.)
10.
Route the MPU cable under the extension spring and connect the MPU
cable connector. (See page 202, item 5.) Make sure the MPU cable does
not touch the extension spring after it is connected.
11.
If the shuttle assembly is a new or refurbished unit, adjust the platen gap
(page 110); otherwise, skip to step 12.
12.
Install the shuttle cover assembly (page 141).
13.
500 lpm models only: set shuttle speed if original shuttle frame assembly
was replaced (page 123).
14.
Adjust the hammer phasing (page 121).
15.
Return the printer to normal operation (page 101).
To prevent electrostatic damage to electronic components, wear a properly
grounded static wrist strap when you handle the shuttle frame assembly.
Do not remove the grease from the shaft of the replacement shuttle frame
assembly. The shuttle shaft is aluminum, and the clamped ends of the
shaft must be greased to prevent galling.
Caution
Do not over-tighten the shuttle frame assembly clamp screws.
Caution