69
3. Loosen the
lock collar screw
with the
2.5 mm Allen Wrench until the lock collar
(shown in blue) can twist freely. Note:
Depending upon encoder models, this step
may require a 2.0 mm Allen wrench.
1. Determine the correct spring to use in the
repair:
Upper Encoder
: Attached to the wheel
on the machine. Use the silver spring.
Lower Encoder
: Attached to the wheel
on the bottom carriage. Use the black
spring.
2. Unplug the encoder cable from the machine.
Replacing the Encoder Spring
Parts & Tools Needed:
Instructions
If the encoder spring is over-tensioned, it may break and need to be replaced. To replace the encoder
spring, take the following steps:
Please speak to a Grace Company
support technician before
attempting these instructions.
Upper Encoder
Spring (Silver)
Lower Encoder
Spring (Black)
OR
Lock Collar Screw
T-handle Allen
Wrench 4 mm
4 mm
2.5 mm
T-handle Allen
Wrench 2.5 mm
1.
Use the 4mm Allen wrench to loosen the
encoder screw
and remove the encoder
and wheel.
Encoder Screw
1
4
2
3
Encoder
Port
Repairs and Diagnostics
