Hofmann geodyna 7600, Service Manual

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Ø Turn the pulley sheave by hand making sure that it turns freely and does not rub against the encoder standoffs.
If the pulley rubs against the standoffs, loosen the four screws securing the bracket and using the spacer gauge
adjust the bracket so that the spacers are at 1,5mm (.063) from the pulley.
Ø Install the new encoder board. The correct gap from the pulley must be from 0,5mm
to 0,6mm ( 0.02” to 0.023”).
Ø Make sure that it reads the small and wider strip zones.
Ø To adjust the gap unlock the screw shown by the arrow and then lock it fi rmly again.
Ø After the blocking of the screw check again the gap.
Ø Connect the 4 pin ribbon cable to the encoder PCB.
Ø Mount the weight tray.
Ø Turn on the machine.
Ø Perform C code C84.
Ø Check if the machine works fi ne.
4.16 CHECK AND REPLACEMENT OF THE MOTOR
" : Medium and big Phillips screwdriver, 5 and 6mm allen keys, 10 and 13mm wrenches, scissors.
6 : 1.5h
i : Defective motor may cause the following malfunctions:
1. The balancer is noisy.
2. The balancer shows E22.
3. The balancer shows E23
4. The balancer shows E24
5. The balancer shows E25
6. The balancer shows E26
TO CHECK THE MOTOR
Ø Check for system messages with service code C28.
Ø Check the power input with C55
Ø Turn off the balancer.
Ø Remove the weight tray.
Ø Check all connectors and cables for damage.
Ø Disconnect the power supply
SM HOF GEODYNA 7600 Rel.D