Panasonic EP-MA51 / EP-MA51CX800 Service Manual ▷ View online
EP-MA51
ORDER NO. HPD0908A16C3
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29 -
6.9. Massage block up/down sensor gear adjustment method
When the Massage mechanism block is removed from the Chair, the position of the Up/down sensor gear changes resulting in
the change of the up/down stop position. When installing the Massage mechanism block on the Rear frame, be sure to adjust
the position with the Up/down sensor gear.
Up/down sensor gear position adjustment procedure
1.Before installing, the Massage mechanism block on the Rear frame must be moved down to the lowest position by setting the
Controller position adjustment button to DOWN. (Refer to the Massage block manual mode operation method.)
2.Install Rail pieces (right/left) and screw them with each four Screws.
3.Make sure that the Massage mechanism block has been mounted horizontally by moving the Massage mechanism block.
* Unless the Massage mechanism block has been mounted horizontally, an abnormal sound or problems may occur.
4.Move it up to the highest position (until the Massage mechanism block stops) by setting the Controller position adjustment
button to UP.
5.Peeping into the square hole of the Rear frame, check the position of the Massage mechanism block to adjust.
Caution:If the Up/down gear overruns, the Up/down worm wheel cracks.
*One thread of the Up/down sensor gear gives a stroke change of 4mm.
*When adjusting the Up/down position, hold the ‘Gear’ and adjust it. (Do not touch the Sensor board.)
Adjust the distance between the square hole and Guide roller assembly to 10mm using the Controller position adjustment
button.
6.Using the Controller position adjustment button, check the up/down stroke.
EP-MA51
ORDER NO. HPD0908A16C3
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30 -
6.10. Tips in installing the Connecting cord for power source
Move the Massage mechanism block to the highest position.
* After installing each Connecting wires, be sure to move the Massage mechanism block up and down pushing the
buttons on the Controller so as to check whether each Connecting cords do not touch Belts or the Rear cover fixing
plate ore at not hooked on the Up/down pinions on both sides. And check also if each Connecting cords are not
extremely tense when the Massage mechanism block is at the highest position.
Caution
When installing the Rear cover, move the Massage mechanism block to the highest position first so as to prevent the
hooking of each Connecting cords. And wind the cord around the wire. If you wind the wire around the cord, the
wire becomes bent.
EP-MA51
ORDER NO. HPD0908A16C3
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31 -
6.11. Allocation of Lead wires of Massage mechanism block
Allocate wires of Main PCB, each Motors, each Sensors with Cable ties as follows:
EP-MA51
ORDER NO. HPD0908A16C3
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32 -
6.12. Tips in disassembly and assembly of Massage mechanism block
6.12.1. Removing the Up/down sensor
1.Disconnect the Connector (CN106) on the Main PCB.
2.Cut Cable tie T30R x 2pcs and T18S x 1pc, which bundle the Lead wires.
3.Unscrew two Install screws on the Up/down gear box B and the Up/down sensor install stand, and remove the Up/down
sensor.
Caution in installing
When installing the Up/down sensor, be sure to install the leg of the Up/down sensor install stand in the groove of the
Up/down gear box B.
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