11 boom tape, 12 cylinder specifications, 13 critical stability weights – JLG 120HX Service Manual User Manual
Page 22: Boom tape -12, Standard boom -12 w/boom wipers -12, Cylinder specifications -12, Critical stability weights -12

SECTION 1 - SPECIFICATIONS
1-12
– JLG Lift –
3120819
1.11 BOOM TAPE
Standard Boom
Red Tape - 56-1/2 in. (143.5 cm).
White Tape - 91-5/8 in. (232.7 cm)
w/Boom Wipers
Red Tape - 54-1/2 in. (138.4 cm).
White Tape - 89-5/8 in. (227.6 cm).
1.12 CYLINDER SPECIFICATIONS
NOTE: All dimensions are given in inches (in.), with the met-
ric equivalent, centimeters (cm), given in parenthe-
ses.
1.13 CRITICAL STABILITY WEIGHTS
DO NOT REPLACE ITEMS CRITICAL TO STABILITY, SUCH AS THE
COUNTERWEIGHT OR FOAM-FILLED TIRES, WITH ITEMS OF DIF-
FERENT WEIGHT OR SPECIFICATION. DO NOT MODIFY UNIT IN
ANY WAY TO AFFECT STABILITY.
Table 1-8. Cylinder Specifications
DESCRIPTION
BORE
STROKE
ROD
DIA.
Lift Cylinder
9.0
(22.9)
48.5
(123.2)
4.0
(10.2)
Master Cylinder
2.5
(6.4)
15.1
(38.4)
1.3
(3.2)
Slave Cylinder
3.5
(8.9)
7.3
(18.5)
1.8
(4.4)
Extend-A-Reach
Cyl.
3.5
(8.9)
18.3
(46.5)
2.5
(6.4)
Telescope Cylinder
5.0
(12.7)
266.0
(675.6)
3.5
(8.9)
Frame Jack Cyl. (2)
5.0
(12.7)
17.6
(44.8)
3.0
(7.6)
Axle Extend Cyl. (2)
3.0
(7.6)
29.0
(73.7)
2.0
(5.1)
Steer Cylinder (2)
3.0
(7.6)
9.8
(24.9)
1.5
(3.8)
Table 1-9. Critical Stability Weights
COMPONENT
WEIGHT
Counterweight
9, 050 lb. (4,105 kg)
Foam-Filled Tires (each)
932 lb. (423 kg)
Deutz Engine
837 lb. (380 kg)
Platform
243 lb. (110 kg)