Enerpac GT-Series User Manual
Page 11
11
Table 2, Technical Data, Enerpac GT Series Hydraulic Tensioners
Series
Maximum
Pressure
Max Load
Hydraulic
Effective Area
Maximum Stroke
Weight
psi
bar
lbf
klbf
kN
inch
2
mm
2
inch
mm
lbs.
Kg
GT1
21,750
1500
50,414
50,4
224
2.32
1496
0.39
10,0
9.7-11.1
4,2-4,8
GT2
21,750
1500
90,256
90,2
402
4.15
2677
0.39
10,0
14.5-23.1
6,3-7,0
GT3
21,750
1500
172,847
172,8
769
7.95
5127
0.39
10,0
26.3-29.9
11,4-13,0
GT4
21,750
1500
329,780
329,7
1467
15.16
9782
0.39
10,0
47.2-53.4
20,5-23,2
GT5
21,750
1500
508,374
508,3
2262
23.37
15079
0.39
10,0
73.9-84.5
32,1-36,7
GT6
21,750
1500
639,598
639,5
2846
29.41
18972
0.39
10,0
103.1-115.7
44,8-50,3
7.4 De-tensioning Instructions - 50% Coverage
(tensioner installed on every other stud)
IMPORTANT: Read precautions and instructions at beginning of
Section 7.0 before beginning the following steps. Also refer to
safety information contained in sections 2.1 and 2.2.
1. Assemble the tensioner(s) to the fi rst 50% of stud(s) to be
de-tensioned and connect the hydraulic hoses. Refer to
sections 6.1 and 6.2 for additional tensioner installation and
hose connection instructions.
2. Follow steps 2 through 8 of Section 7.3 for the fi rst 50% of
studs.
3. Move the tensioners to the second 50% of studs.
4. Follow steps 2 through 9 of Section 7.3 for the remaining
50% of studs. Note that the “break loose” hydraulic pressure
for the second set of studs will likely be about the same or
slightly lower than that for the fi rst set.
8.0 STORAGE
The tensioner’s black oxide fi nish will help protect it from rust
and corrosion. However, for added protection, a light coating of
oil or rust inhibitor should be applied to all metal surfaces.
Cover the internal threads of the threaded puller with oil or a
suitable rust inhibitor.
Store the tensioner upright, with the piston fully retracted
inside the body.
Always keep dust caps installed on couplers when the tensioner
is not being used.
Wipe all hoses clean and apply a light coating of oil or suitable
rust inhibitor to all couplers.
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