Service manual

SECTION 1 - SPECIFICATIONS
3121122 – JLG Lift – 1-3
1.6 LUBRICATION
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 Mobil DTE 11M
hydraulic oil, which has an SAE viscosity index of
140.
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 or be of
comparable viscosities.
Lubrication Specifications
* MPG may be substituted for these lubricants, if
necessary, but service intervals will be reduced.
NOTE: Refer to Lubrication Chart for specific lubrication pro-
cedures.
1.7 CYLINDER SPECIFICATIONS
1.8 MAJOR COMPONENT WEIGHTS
1.9 CRITICAL STABILITY WEIGHTS
Table 1-5. Hydraulic Oil
Hydraulic System Operating
Temperature R ange
SAE Viscosity Grade
0° F to 23° F (-18°C to -5°C) 10W
0° F to 210° F (-18°C to +99°C) 10W-20, 10W- 0
50° F to 210° F (+10°C to +99°C) 20W-20
Table 1-6. Lubrication Specifications
KEY SPECIFICATIONS
EPGL
Extreme Pressure Gear Lube (oil) meeting API service
classification GL-5 or MIL-Spec MIL-L-2105
HO
Hydraulic Oil. API service classification Gl-3, BP Ener-
gol SHS46.
LL Synthetic Lithium Lubricant, Gredag 741 Grease.
Table 1-7. Mobil DTE 11M Specs
ISO Viscosity Grade #15
Gravity API 31.9
Pour Point, Max -40°F (-40°C)
Flash Point, Min. 330°F (166°C)
Viscosity
at 40° C 15 cSt
at 100° C 4.1 cSt
at 100° F 80 SUS
at 210° F 43 SUS
cp at -30° F 3.200
Viscosity Index 140
Table 1-8. Cylinder Specifications
DESCRIPTION BORE STROKE ROD DIA.
Lift Cylinder
(M3369/3369LE)
4.00 in
(10.16 cm)
63.69 in
(161.77 cm)
2.75 in
(6.98 cm)
Upper Lift Cylinder
(M4069/4069LE)
3.00 in
(7.62 cm)
58.13 in
(147.65 cm)
2.75 in
(6.98 cm)
Lower Lift Cylinder
(M4069/4069LE)
4.00 in
(10.16 cm)
58.13 in
(147.65 cm)
2.25 in
(5.71 cm)
Steer Cylinder
2.00 in
(5.08 cm)
6.5 in
(16.51 cm)
1.125 in
(2.86 cm)
Table 1-9. Major Component Weights
Description 3369LE/M3369 4069LE/M4069
Platform 780 lbs (354 kg)
Platform Extension 360 lbs (163 kg)
Arm Assembly
(Includes Lift Cylinders)
3200 lbs
(1451 kg)
3900 lbs
(1769 kg)
Chassis (Includes Battery Box
and Foam filled Tires)
5420 lbs
(2458 kg)
5517 lbs
(2502 kg)
Foam Filled Tire and Wheel
Assembly (each)
180 lb. (81.6 kg)
Table 1-10. Critical Stability Weights
Description 3369LE/M3369 4069LE/M4069
Platform 780 lbs (354 kg)
Platform Extension 360 lbs (163 kg)
Foam Filled Tires 207 lbs (94 kg)
Battery (Each) 122 lbs (55 kg)