Autoquip FREIGHTLIFT FL4M - Manual (Page 21)

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III. BLOCKING FOR GEAR MOTOR/DRIVE MAINTENANCE
DANGER !
Do not remove or disconnect the motor, brake or drive chains unless the
platform has been adequately blocked to prevent any downward
movement, a falling platform will cause serious injury or death.
Extreme caution must be taken anytime the gearbox, brake motor, or drive chains are
disassembled. All holding and braking forces on the lifting chains are removed and
these chains are allowed to “free-wheel” under their own weight or any other weight that
may be on the chains, including the weight of the carriage.
Therefore, any time maintenance to the drive train (gearbox, brake motor, drive chains)
is performed, especially when utilizing the lift carriage as the work platform, the carriage
MUST be blocked adequately per approved blocking methods as described in
paragraph II. above.
DANGER !
Only trained and qualified technicians should operate the manual brake
release. With the brake disengaged, the carriage will fall uncontrollably
and cause serious injury or death.
BLOCKING INSTRUCTIONS