JLG 3969electric ANSI Service Manual User Manual
Page 8
SECTION 1 - SPECIFICATIONS
1-2
– JLG Sizzor –
3120768
Machine Width
3369 electric - 69 in (1.80 m)
3969 electric - 69 in. (1.80 m)
Wheelbase
3369 electric - 77 in (1.98 m)
3969 electric - 77 in (1.98 m)
Ground Clearance
3369 electric - 7 in (17.8 cm)
3969 electric - 7 in (17.8 cm)
Maximum Tire Load
3369 electric - 3060 lb (1388 kg)
3969 electric - 3145 lb (1427 kg)
Maximum Bearing Pressure
3369 electric - 56 psi (3.9 bar)
3969 electric - 58 psi (3.9 bar)
1.4
TORQUE SPECIFICATIONS
NOTE: When maintenance becomes necessary or a fas-
tener has loosened, refer to the Torque Chart to
determine proper torque value.
1.5
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 Mobilfluid 424
hydraulic oil, which has an SAE viscosity index of
152.
When temperatures remain consistently below 2° F
(-7 ° C), JLG recommends the use of Mobil DTE 11.
NOTE: 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 neces-
sary, but service intervals will be reduced.
NOTE: Refer to Lubrication Chart for specific lubrication pro-
cedures.
1.6
PRESSURE SETTINGS
Lift Up Relief - 3369ES - 2500 psi (172 bar)
3969ES - 2700 psi (186 bar)
Lift Down Relief - 1000 psi (69 bar)
Steer Relief - 1200 psi (82.74 bar)
NOTE: Main Relief at Pump - 2700 psi (186.2 bar)
Table 1-1. Torque Specifications
DESCRIPTION
TORQUE VALUE
(DRY)
INTERVAL HOURS
Torque Hub
75 ft. lbs.
102 (NM)
500
Wheel Bolts
90 ft. lbs.
(122 NM)
50
Table 1-2. Hydraulic Oil
Hydraulic System Operating Temper-
ature Range
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 1-3. 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 Energol
SHS46.
LL
Synthetic Lithium Lubricant, Gredag 741 Grease.
Updated 11/24/99