JLG 120HX ANSI Operator Manual - Manual (Page 21)

SECTION 2 - PREPARATION AND INSPECTION
3120685 – JLG Lift – 2-5
5. Start each day with a full fuel tank.
TO AVOID INJURY, DO NOT OPERATE A MACHINE UNTIL ALL
MALFUNCTIONS HAVE BEEN CORRECTED. USE OF A MALFUNC-
TIONING MACHINE IS A SAFETY VIOLATION.
TO AVOID POSSIBLE INJURY, BE SURE MACHINE POWER IS
“OFF” DURING WALK-AROUND INSPECTION.
NOTE: Check boom horizontal limit switch for proper opera-
tion and security, both visually and manually. Switch
must shut down high engine and high drive speed
when boom is raised above horizontal:
6. Check platform footswitch for proper operation.
Switch must be released to start engine and
depressed to operate machine.
7. Check that drive brakes hold when machine is
driven up a grade and stopped.
NOTE: On new machines, those recently overhauled, or
after changing hydraulic oil, operate all systems a
minimum of two complete cycles and recheck oil
level in reservoir.
NOTE: Hydraulic oils must have anti-wear qualities at least
to API Service Classification GL-3, and sufficient
chemical stability for mobile hydraulic system ser-
vice. JLG Industries recommends Mobilfluid 424
hydraulic oil, which has an SAE viscosity index of
152 or Kendall Hyken 052 hydraulic oil, which has an
SAE viscosity of 10W-20 and viscosity index of 152.
When temperatures remain consistently below -7
degrees C., JLG Industries recommends the use of
Mobil DTE 11.
Aside from JLG recommendations, it is not advisable
to mix oils of different brands or types, as they may
not contain the same required additives of be of
comparable viscosities. If use of hydraulic oil other
than Mobilfluid 424 is desired, contact JLG industries
for proper recommendations.
8. Assure that all items requiring lubrication are ser-
viced. Refer to Lubrication Chart, Figure 2-3., for
specific requirements.