Enerpac GT Serie Hoja De Instrucciones página 11

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.
Maximum
Series
Pressure
psi bar
GT1 21,750 1500
GT2 21,750 1500
GT3 21,750 1500
GT4 21,750 1500
GT5 21,750 1500
GT6 21,750 1500
Table 2, Technical Data, Enerpac GT Series Hydraulic Tensioners
Max Load
lbf klbf kN
50,414 50,4 224
90,256 90,2 402
172,847 172,8 769
329,780 329,7 1467
508,374 508,3 2262
639,598 639,5 2846
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.
Hydraulic
Maximum Stroke
Effective Area
2 2
inch mm inch
2.32 1496 0.39
4.15 2677 0.39
7.95 5127 0.39
15.16 9782 0.39
23.37 15079 0.39
29.41 18972 0.39
11
Weight
mm lbs. Kg
10,0 9.7-11.1 4,2-4,8
10,0 14.5-23.1 6,3-7,0
10,0 26.3-29.9 11,4-13,0
10,0 47.2-53.4 20,5-23,2
10,0 73.9-84.5 32,1-36,7
10,0 103.1-115.7 44,8-50,3