Service Manual Owner's manual

SECTION 1 - MACHINE SPECIFICATIONS
3121222 – JLG Lift – 1-3
Lubrication Specifications
Oil Check Procedure
Lube Point(s) - Hydraulic Reservoir
Reservoir Capacity: 0.80 Gal. (3 L)
Lube - Hydraulic Oil
Interval - Check Daily
NOTE: Be certain the hydraulic oil has warmed to operat-
ing temperature before checking the oil level in the
reservoir.
1. From either side of the machine, open the side
access door on the base frame (1). Locate the
hydraulic oil reservoir (2) on the pump unit (3).
Check the oil level in the hydraulic reservoir by look-
ing at the markings on the side of the tank. The res-
ervoir is marked with MIN (minimum) and MAX
(maximum) markings (4). The oil level must be
within these markings to operate properly.
2. If additional oil is required, wipe all dirt and debris
from the filler/breather cap (5) area, add proper
grade of oil by using a funnel with a flexible spout or
a plastic squeeze bottle. Fill until oil level is between
the MIN and MAX markings (4).
NOTE: Care should be taken not to introduce any impurities
(dirt, water etc.) while cap is removed.
NOTE: Recommended lubricating intervals are based on
machine operations under normal conditions. For
machines used in multi-shift operations and/or
exposed to hostile environments or conditions,
lubrication frequencies must be increased accord-
ingly.
1.3 CYLINDER SPECIFICATIONS
NOTE: All dimensions are given in inches (in), with the met-
ric equivalent, centimeters (cm), given in parenthe-
ses.
1.4 TORQUE REQUIREMENTS
When maintenance becomes necessary or a fastener has
loosened, refer to the applicable Torque Chart in this sec-
tion of the manual to determine proper torque values for
various size fasteners.
1.5 SERIAL NUMBER LOCATIONS
For machine identification, a metal serial number plate is
affixed to the machine. The plate is mounted behind the
left rear wheel on the side of the base frame. The machine
serial number can also be found on a bar code label
placed on the platform control station mounting plate in
the platform.
Table 1-9. Lubrication Specifications
Key Specifications
MPG Multipurpose Grease having a minimum dripping point of
350° F. Excellent water resistance and adhesive qualities,
and being of extreme pressure type. (Timken OK 40
pounds minimum.)
EPGL Extreme Pressure Gear Lube (oil) meeting API service
classification GL-5 or MIL-Spec MIL-L-2105.
HO Hydraulic Oil - Mobil DTE 11M or Nervofluid 15 (Europe)
Table 1-10. Hydraulic Oil Specifications
Specification Mobil DTE 11M Nervofluid 15
ISO Viscosity Grade #15 #15
Gravity API 31.9 —
Pour Point, Max -40° F (-40° C) -40° C (-40° F)
Flash Point, Min. 330° F (166° C) 175° C (347° F)
Viscosity Specifications
at 40° C 15 cSt 14.9 mm
2
/s
at 100° C 4.1 cSt 3.8 mm
2
/s
at 100° F 80 SUS —
at 210° F 43 SUS —
cp at -30° F 3.200 —
Viscosity Index 140 153
Figure 1-1. Hydraulic Oil Check Procedure
Table 1-11. Cylinder Specifications
Description
Bore
in./(cm)
Stroke
in./(cm)
Rod Dia.
in./(cm)
Lift Cylinder
1.57 (4) 124 (315) 1.18 (3)
Steer Cylinder
1.97 (5) 4.21 (10.7) 0.98 (2.5)