JLG 660SJ Operator Manual - Manual (Page 67)

SECTION 4 - MACHINE OPERATION
3121205 – JLG Lift – 4-9
4.9 OSCILLATING AXLE LOCKOUT TEST (IF
EQUIPPED)
LOCKOUT SYSTEM TEST MUST BE PERFORMED QUARTERLY, ANY TIME
A SYSTEM COMPONENT IS REPLACED, OR WHEN IMPROPER SYSTEM
OPERATION IS SUSPECTED.
Refer to Section 6.5, Oscillating Axle Lockout Test (If
Equipped) for procedure.
4.10 STEER/TOW SELECTOR (IF EQUIPPED)
DO NOT ATTEMPT TO TOW MACHINE UNLESS EQUIPPED WITH COM-
PLETE TOW PACKAGE FROM MANUFACTURER.
A push-pull type selector valve located adjacent to the steer
cylinder and linkage regulates oil flow in the steer circuit for
steering and towing. When steering the unit the valve knob is
pushed IN. When towing the unit the valve knob is pulled
OUT to the float position.
4.11 TOWING (IF EQUIPPED)
RUNAWAY VEHICLE/MACHINE HAZARD. MACHINE HAS NO TOWING
BRAKES. TOWING VEHICLE MUST BE ABLE TO CONTROL MACHINE AT
ALL TIMES. ON-HIGHWAY TOWING NOT PERMITTED. FAILURE TO FOL-
LOW INSTRUCTIONS COULD CAUSE SERIOUS INJURY OR DEATH.
MAXIMUM TOWING SPEED 8 M.P.H. (13 K.M.H.)
MAXIMUM TOWING GRADE 25%.
Prior to towing the machine, complete the following:
DO NOT TOW MACHINE WITH ENGINE OPERATING OR DRIVE HUBS
ENGAGED.
1. Retract, lower and position boom over rear drive wheels
in line with direction of travel; lock turntable.