Zenoah BHT250PD60 Workshop Manual page 15

Disassemble the keypad if there is damage on the rear
handle, the keypad or when troubleshooting indicates a
defect.
1. To disconnect the plug (A), press the catch (B) and
carefully pull the plug.
2. Push the 4 catches, one at a time, from below with a
screwdriver.
3. Carefully remove the keypad with holder from the
bracket (D).
5.9.2 To assemble the keypad
CAUTION: Do not bend the keypad.
CAUTION: The flat cable to the keypad is very
easily damaged.
620 - 002 - 29.01.2019
B
A
C
D
Do steps 1-3 only when you replace the keypad.
1. Clean the surface where the keypad is attached.
2. Make sure that the temperature is minimum 15°C.
Make sure that the temperature of the surface where
the keypad is attached does not change more than
±3°C from the ambient temperature.
3. Remove the protective tape from the new keypad
and press it onto the holder. Press on the keypad
with 10 N/cm².
4. Push the keypad with holder into the bracket (A)
until you hear a click.
5. Put the flat cable into the grooves in the bracket.
>15°C
2
10 N/cm
>10 sec
A
Repair instructions - 15