Panasonic EP-MA73 / EP-MA73KU892 (serv.man2) Service Manual ▷ View online
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9.19.5. Removing the Up/down gear block
* You cannot replace Up/down shaft or Up/down motor without disassembling the Up/down gear block.
* Proceed the Procedure of 1-4 of 9.19.3 Removing the Width sensor.
1. Remove the Massage mechanism block from the Rear frame.
2. Remove 10 screws on the Up/down driving install plate and the Intensity driving install plate.
3. Remove two screws on the Up/down sensor install plate.
4. Remove three screws on the Up/down gear box and the Up/down driving install plate.
5. Remove four Install screws on the Up/down gear box A/B.
6. Remove two Install screws on the Up/down gear box and the Up/down motor.
2. Remove 10 screws on the Up/down driving install plate and the Intensity driving install plate.
3. Remove two screws on the Up/down sensor install plate.
4. Remove three screws on the Up/down gear box and the Up/down driving install plate.
5. Remove four Install screws on the Up/down gear box A/B.
6. Remove two Install screws on the Up/down gear box and the Up/down motor.
(One is the Grounding screw.)
9.19.6. Removing the Up/down shaft (Up/down shaft bolt)
* Remove the Massage mechanism block from the Massage chair before executing this work.
1. Remove the Up/down shaft bolt on the Pinion B/C with the 13mm-Box driver and a Phillips screwdriver.
Caution in installing
• The Up/down shaft bolt may be broken if it is tightened too much.
Tighten the Up/down shaft bolt at 35-45kgfcm (350-450Ncm) (40-52lbfin) with a torque wrench.
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9.19.7. Removing the Grease cover
1. Set the Intensity position at strongest.
2. Remove one screw and two Snap rivets.
2. Remove one screw and two Snap rivets.
Caution
When you install the Snap rivets, be sure to insert them fully.
If not, the Snap rivets are loosened during the operation, and it leads to the abnormal vibration noise like Bbbbbbbbb.
If not, the Snap rivets are loosened during the operation, and it leads to the abnormal vibration noise like Bbbbbbbbb.
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9.20. Removing each Lift units
9.20.1. Removing the Ottoman lift unit
1. Proceed all the procedures of 9.15. Removing the Massage mechanism block.
* The work would be safe and easy if the Massage mechanism block is removed.
2. Proceed the procedures of 1-7 of 9.12. Removing the Under box, and disconnect the Connectors of the Ottoman lift unit
(CN11, CN13) and removing the Grounding terminal on the Sub PCB.
3. Remove the Ottoman pin long and the Snap pin, and you can remove the Ottoman lift unit.
* It would be easier to remove the Ottoman lift unit after removing the Massage mechanism block.
Caution in installing
When you install the Snap pin, bend the Snap pin at approx. 45 degree.
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9.20.2. Removing the Reclining lift unit
1. Proceed all the procedures of 9.15. Removing the Massage mechanism block.
* The work would be safe and easy if the Massage mechanism block is removed.
2. Proceed the procedures of 1-7 of 9.12. Removing the Under box, and disconnect the Connectors of the Reclining lift unit
(CN10, CN12) and remove the Grounding terminal on the Sub PCB.
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