Enerpac GT-Series - Manual (Page 6)

6
Figure 6, Hydraulic Tensioner Mounting Arrangements (typical)
50 % Coverage
(typical arrangement)
100% Coverage
(typical arrangement)
Note: This method of assembly is often used
where studs can be tensioned from only one
side of the joint due to an access restriction
on the opposite side. The studs must be
assembled with the protrusions on the same
side of the joint (see below).
Note: Using this method of assembly, all
studs are tightened simultaneously in one
operation. To allow room for all tensioners,
the protruding studs must be staggered over
each side of the joint (see above).
Note: In stage one, 50 %
of the studs are tensioned,
In stage two, the remaining
50% of the studs are
tensioned.
6.3 Tensioner Arrangements (typical)
Hydraulic tensioners can be mounted on either one or both sides
of the joint, depending on available clearance and work room.
Whenever possible, all studs on the joint should be tensioned
at the same time. Typical examples of 100% and 50% tensioner
coverage are shown in Figure 6. Contact Enerpac for additional
information regarding tensioner arrangements of less than 50%
coverage. Note: For less than 100% coverage, divide the quantity of
tensioners available into the quantity of studs in the joint. This will
determine the stud locations to be tightened during each pass.
For example, if 18 tensioners are available for a 36 bolt joint,
then every second stud will contain a tensioner (50% coverage).
If 12 tensioners are available, then every third stud will contain a
tensioner (33% coverage).
Interconnecting hose
Feed Hose to Pump
Interconnecting hoses
Feed Hose to Pump
Interconnecting hoses