JLG 150HAX ANSI Service Manual - Manual (Page 57)

SECTION 3 - CHASSIS & TURNTABLE
3120679 – JLG Lift – 3-19
3.5 FREE WHEELING OPTION
To Disengage Drive Motors and Brakes
(Free Wheel) for Towing, etc.
1. Chock wheels securely if not on a flat level surface.
2. Disconnect all drive hubs by inverting disconnect
caps in center of hubs.
To Engage Drive Motors and Brakes
(Normal Operation)
1. Connect all drive hubs by inverting disconnect cap
in center of hub.
2. Remove chocks from wheels as required.
NOTE: This machine is not equipped with a tow package.
Refer to Section 6 of the Operating and Safety Man-
ual for emergency towing procedures.
3.6 SWING BEARING
Turntable Bearing Mounting Bolt Condition
Check
NOTE: This check is designed to replace the existing bear-
ing bolt torque checks on JLG Lifts in service. This
check must be performed after the first 50 hours of
machine operation and every 600 hours of machine
operation thereafter. If during this check any bolts
are found to be missing or loose, replace missing or
loose bolts with new bolts and torque to the value
specified in the torque chart, after lubricating the bolt
threads with JLG Threadlocker P/N 0100019. After
replacing and retorquing bolt or bolts recheck all
existing bolts for looseness.
Check the frame to bearing. Attach bolts as follows:
1. Elevate the fully retracted boom to 70 degrees (full
elevation).
2. At the positions indicated on Figure 3-18., Swing
Bearing Bolt Feeler Gauge Check, try and insert the
0.0015" feeler gauge between the bolt head and
hardened washer at the arrow indicated position.
3. Assure that the 0.0015" feeler gauge will not pene-
trate under the bolt head to the bolt shank.
4. Swing the turntable 90 degrees, and check some
selected bolts at the new position.
5. Continue rotating the turntable at 90 degrees inter-
vals until a sampling of bolts have been checked in
all quadrants.