43-4
®
TURNTABLE BEARING- ML (continued...)
WARNING
!
WARNING
!
Fig-1
INSPECTION (continued...)
Ÿ Re-check mounting bolt torque every 100 hours of operation.
Ÿ Should any loss of pretension be detected, the source must be determined and eliminated.
The bolts should be checked again after each additional 50 hours of operation until loss is
no longer detected.
MOUNTING BOLTS
Ÿ Mounting bolts should be checked by the end user after the first 50 operating hours.
Ÿ A common fastener torque sequence is the star
pattern tightening following the steps below. This
is usually done in 3 steps at approximately 30%,
80%, and 100% of the final torque or tension level
prescribed the machine specifications. See Fig-1
for the torque sequence.
Maintain proper bolt torque. Visually
check bolts daily. Check torque every 100
hours.
Loose or over-torqued bolts can cause
death, severe injury or property damage.
ML TURNTABLE BEARING, MOUNTING, & SPECIFICATIONS
DESCRIPTION QTY BARKO SPECIFICATIONS
Turntable Bearing 1
3/4” Mounting Bolts 36 torque to 331 ft-lbs, use anti-seize
Ÿ bearing to platform
Ÿ lower frame to bearing
*DO NOT RE-USE TURNTABLE MOUNTING BOLTS OR WASHERS!
However mounting bolts may be re-torqued and torque should be checked
regularly, if any mounting bolts break or if the swing bearing is being removed
and replaced, ALL NEW MOUNTING BOLTS AND WASHERS MUST BE
USED. Failure to do so could result in catastrophic failure to machine
mounting.
08/20/2018
Updated
OPERATOR’S
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