BELL HELICOPTER 222, Maintenance Manual

Page: 104 / 198

BHT-222/222B-MM-1
5-00-00
Page 86
Rev. 7 9 SEP 2011 ECCN EAR99
NOTE
During the drive pin(s) torque check procedure,
deflection of the torque wrench and the offset
extension may be noticed when torque is applied.
This deflection could be perceived as pin rotation.
Therefore, it is important that clear and precise index
marks on the pins and the ring exist so that rotation
can be verified by visible displacement between the
marks.
NOTE
The head of drive pin 222-010-455-003 has two flats
that fit into a clearance slot inside the rotating ring.
An unacceptable interference fit will allow the pin to
rotate within the slot at a torque less than
50 foot-pounds (67.79 Nm). The motion will be small,
but can easily be detected using procedures in
step e and step f that follow.
An acceptable interference fit will allow zero pin
rotation during the torque check procedure at
50 foot-pounds (67.79 Nm) of torque.
c. Align the rectangular hole of torque test tool
230-210-100-101 on the wrenching flats of the drive pin to be
tested. Secure the tool to the pin with one thrust washer and
nut. Torque the retaining nut 6 to 12 foot-pounds (8.13 to
16.27 Nm).
NOTE
A calibrated dial type torque wrench is recommended
for this torque check. However, if a click type wrench
is used, apply torque with a slow, smooth motion.
Otherwise, the 50 foot-pound (67.79 Nm) torque may
be exceeded.
d. Attach the torque wrench vertically (90° to the centerline
of the tool) to the outboard end of the torque test tool.
SCHEDULED INSPECTIONS
5-29. EVERY 150 HOURS OF COMPONENT OPERATION (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER