Panasonic EP-MA73 / EP-MA73KU892 Service Manual ▷ View online
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9.16. Adjusting the Up/down sensor gear
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 posi-
tion with the Up/down sensor gear.
change of the up/down stop position. When installing the Massage mechanism block on the Rear frame, be sure to adjust the posi-
tion with the Up/down sensor gear.
Removing the Massage mechanism block
1. Before removing the Massage mechanism block from the Rear frame, push the button of Off/On on the Controller twice to
move the Massage mechanism block to the lowest position
or use the secret mode (CE) to move the Massage mechanism block to the lowest position.
or use the secret mode (CE) to move the Massage mechanism block to the lowest position.
2. First, remove four screws, which install the Rail piece set left, and remove the Rail piece left. Then, install the Massage block
jig.
* You can unload the Massage mechanism block without the Massage block jig, which prevents the fall of the Massage mech-
anism block after the Rail piece set right is removed.
* You can unload the Massage mechanism block without the Massage block jig, which prevents the fall of the Massage mech-
anism block after the Rail piece set right is removed.
3. Remove four screws, which install the Rail piece set right, and remove the Rail piece set right.
4. Remove the Massage mechanism block from the Rear frame.
4. Remove the Massage mechanism block from the Rear frame.
Caution: Hold the Guide roller right when removing the Massage mechanism block so that the spring does not come
out.
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Installing the Massage mechanism block
1. Before installing the Massage mechanism block on the Rear frame, push the button of Off/On on the Controller twice to move
the Massage mechanism block to the lowest position.
Caution: If you do not carry out this procedure and install the Massage mechanism block on the Rear frame and
Caution: If you do not carry out this procedure and install the Massage mechanism block on the Rear frame and
operate it, the Massage mechanism block overruns and its gears become cracked not recognizing the up/down posi-
tions.
2. Install the Massage mechanism block on the Rear frame.
3. Install the Massage block jig on the left rail.
4. First, tighten four screws on the Rail piece set right.
5. Then, tighten four screws on the Rail piece set left.
6. Move the Massage mechanism block to the highest position using the Secret mode (CE).
3. Install the Massage block jig on the left rail.
4. First, tighten four screws on the Rail piece set right.
5. Then, tighten four screws on the Rail piece set left.
6. Move the Massage mechanism block to the highest position using the Secret mode (CE).
(Push the button of longer to move the Massage mechanism block to the highest position till the P-P-P sound is heard.)
Caution: Check if the Massage mechanism block is installed horizontally moving the block. (Refer to the figure 1.)
Caution: Check if the Massage mechanism block is installed horizontally moving the block. (Refer to the figure 1.)
* If the Massage mechanism block is not installed horizontally, it may lead to the abnormal noises or malfunction.
7. Check the positions that the Massage mechanism block stops and adjust the height with the Sensing gear.
Caution: If the Massage mechanism block overruns, the Up/down worm gear becomes cracked.
* One thread of the Up/down sensor gear gives a stroke change of 4mm (0.1575in.).
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9.17. Tips in installing the Connecting cord for power source
Move the Massage mechanism block to the highest position.
* After installing the Connecting cord for power source, be sure to move the Massage mechanism block up an down pushing the
and buttons on the Controller by Secret mode (CE) so as to check whether each Connecting cords do not touch Belts or the
Rear cover fixing plate or are not hooked on the Up/down pinions on both right/left sides. And check also if each Connecting cords
are not extremely tense when the Massage mechanism block is at the highest position.
Rear cover fixing plate or are not hooked on the Up/down pinions on both right/left 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.
each Connecting cords. And wind the cord around the wire. If you wind the wire around the cord, the wire becomes bent.
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9.18. Allocation of the Lead wires of the Massage mechanism block
Allocation of the Lead wires of the Main PCB, each Motors, other parts, Cable ties are as follows:
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