JLG 80HX, Service Maintenance Manual

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SECTION 1 - SPECIFICATIONS
1-4 – JLG Lift – 3120863
Maximum Tire Load
80HX - 17037 kg @ 7.2 kg/cm
2
80HX + 6 - 8299 kg @ 7.5 kg/cm
2
Wheelbase
3 m
1.4 TORQUE REQUIREMENTS
NOTE: See Procedure Section for tightening sequence of
turntable bearing bolts.
NOTE: When maintenance becomes necessary or a fas-
tener has loosened, refer to the Torque Chart to
determine proper torque value.
1.5 LUBRICATION
Deutz Engine
Single Viscosity Oils (CD-SE, CD-SF).
Multi-Viscosity Oils (CD-SE, CD-SF).
* This viscosity can be used at colder temperatures only
with engine oil preheating.
.
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 .
NOTE: When temperatures remain consistently below 20
degrees F (-7 degrees C.), JLG Industries recom-
mends the use of Mobil DTE11.
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. If use of hydraulic oil other
than Mobilfluid 424 is desired, contact JLG Indus-
tries for proper recommendations.
Table 1-1. Torque Requirements
Description
Torque
Interval
Hours
Ft. Lbs. Nm
Turntable (prior to April, 1986)
5/8" Bolts - Wet
5/8" Bolts - Dry
7/8" Bolts - Wet
7/8" Bolts - Dry -
170
220
460
600
-
235
304
636
830
50/600*
Turntable (April, 1986 to Present)
Wet
Dry
-
170
220
-
235
304
50/600*
Wheel Lugs
Wet
Dry -
220
300
-
304
415
100
Drive Hub
Wet
Dry
-
110
150
-
149
207
200/500**
Swing Hub
Wet
Dry -
80
110
-
110
149
200/500**
* Check swing bearing bolts for security after first 50 hours of
operation and every 600 hours thereafter.
**Retorque after first 200 hours of operation and every 500 hours
thereafter.
When Outside Temp
is Consistently
Use SAE
Viscosity Number
-29° C - -4° C. *10W
-9.5° C - + 10° C. 20W-20
+4.5° C - + 29.5° C. 30
Above 24° C. 40
When Outside Temp
is Consistently
Use SAE
Viscosity Number
-40° C - +24° C. *5W-20
(Synthetic)
-20.5° C - +21° C. 10W-30
-20.5° C - +29.5° C. 10W-40
-9.5° C - +24° C. 15W-30
Above +9.5° C. 15W-40
Table 1-2.Hydraulic Oil
Hydraulic System Operating
Temperature Range
SAE Viscosity
Grade
0° to +23° F(-18° to -5° C) 10W
0° to +210° F(-18° to +100° C) 10W-20, 10W-30
+50° to +210° F(+10° to +99° C) 20W-20