Blizzard B74C Operator And Parts Manual page 39

C K
ROSS IT
Note: Cross bearings must be greased every 8 working hours.
T T
ELESCOPIC UBES
Note: Telescopic tubes must be cleaned and greased every 8 working hours.
OM 0410SB-A
MAINTENANCE
AVOIDABLE DAMAGES
 Cross arms broken.
 Bearing caps turning in their
cross journal.
 Overheated bearing caps.
 Accelerated wear of cross kit.
AVOIDABLE DAMAGES
 Telescopic tubes failure or
twisting.
Accelerated wear of telescopic
tubes.
POSSIBLE CAUSES
 Extreme torque peak or
shock load.
 Axial loads too high.
 Excessive continuous
torque and/or excessive
working angle.
 Inadequate greasing.
 Excessive continuous
torque and/or excessive
working angle.
 Inadequate greasing.
POSSIBLE CAUSES
 Extreme torque peak or
shock load.
 Short tube engagement.
 Extreme load when sliding.
 Short tube engagement.
 Inadequate greasing.
 Dirt
37
CORRECTIVE ACTIONS
 Use appropriate safety device.
 Change to a larger driveline
size.
 Shorten driveline shaft.
 Replace defective cross
bearings.
 Verify compatibility between
shaft and working conditions.
 Carefully follow greasing
instructions.
 Replace defective cross
bearings.
 Verify compatibility between
shaft and working conditions.
 Carefully follow greasing
instructions.
 Replace defective cross
bearings.
CORRECTIVE ACTIONS
 Use appropriate safety device.
 Change to a larger driveline
size.
 Replace the driveline drive
shaft with one having
adequate length.
 Replace defective tubes.
 Change to a driveline with
rilsan coated inner tube.
 Replace the driveline with one
having adequate length.
 Carefully follow greasing
instructions.
 Replace defective tubes.