BIFFI FCB Series, Руководство пользователя

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Service Instructions
VCIOM-15313-EN Rev. 1 March 2022
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Section 3: Actuator Reassembly
Actuator Reassembly
NOTE:
Rotate the hex nut down the M3 jackscrew until it is next to the M3 adapter.
3.2.3 Apply a coating of lubricant to the torque shaft holes located on each side of
housing (1-10).
3.2.4 Coat torque shaft wiper seals (2-20) with lubricant and install in one of the grooves
located in the torque shaft bore of the housing (1-10).
NOTE:
The cup of torque shaft wiper seal will be installed facing down into the housing.
3.2.5 Coat yoke (1-20) with lubricant and install into housing (1-10). Apply a generous
amount of lubricant to the slots in the arms of yoke (1-20).
3.2.6 Insert the yoke key spring (1-50), with the ends pointing down, into the slot in the
torque shaft (1-30) and place the yoke key (1-40) on top of the spring with the
tapered side outward.
! WARNING
If the yoke key (1-40) is installed incorrectly the housing may be damaged when the next
disassembly occurs. Refer to assembly drawing for correct yoke key spring and yoke
key orientation.
3.2.7 Hold the yoke key (1-40) down with your thumb; insert the torque shaft (1-30) by
gently rotating it into the housing (1-10) and yoke (1-20) on the opposite side of
the installed torque shaft wiper seal (2-20).
NOTE:
Torque Shaft should be installed with the key rotated 180° opposite yoke key slot.
When the torque shaft (1-30) is flush with the housing (1-10) push the torque shaft (1-30)
through until the empty seal groove is exposed. Install the other torque shaft wiper seal
(2-20) into the groove. The cup of the torque shaft wiper seal again needs to be installed
facing inward into the housing. Two new retaining rings (1-60) are contained in the Biffi
FCBB Service Kits.
3.2.8 Install one of the new retaining rings (1-60) onto the exposed end of the torque
shaft, making certain it is properly seated in the groove of the torque shaft (1-30).
Gently push and rotate the torque shaft (1-30) until the retaining ring (1-60) is
pressed against the housing (1-10). Install the other retaining ring (1-60) to the
other side of the torque shaft (1-30).
!
CAUTION
Rotate the torque shaft until the yoke key snaps into the yoke keyway.