Enerpac BHP-Series - Manual (Page 2)

2
2.3 Multi-Purpose Puller Sets
BHP-1752, BHP-2751G, BHP-3751G and BHP-5751G
multi-purpose puller sets are a combination of the
above mentioned grip puller sets and cross bearing
puller sets to provide maximum application flexibility
in pulling and pushing applications in maintenance
and repair. See table C (page 10) for individual
components.
3.0 GENERAL SAFETY ISSUES
Failure to comply with the following cautions and
warnings could cause equipment damage or
personal injury.
WARNING: DO NOT exceed 50% of the
rated puller capacity when using a
double crosshead (2 grip arms): do not
exceed 350 bar (5,000 psi) when using
a hydraulic puller in this application.
WARNING: DO NOT exceed 50% of the
rated puller capacity when using the
puller legs in combination with bearing
puller attachment: do not exceed 350
bar (5,000 psi) when using a hydraulic
puller in this application.
IMPORTANT: It is recommended to use
the triple crosshead (3 grip arms) which
gives a more secure grip, a more even
pulling force and is more stable than the
double crosshead (2 grip arms).
WARNING: To avoid personal injury and
equipment damage, make sure all
hydraulic components withstand the max.
hydraulic pressure of 700 bar (10,000 psi).
IMPORTANT: Use hydraulic gauges in
each hydraulic system to indicate safe
operating loads.
WARNING: Make sure that all system
components are protected from external
sources of damage, such as excessive
heat, flame, moving machine parts, sharp
edges and corrosive chemicals.
CAUTION: Avoid sharp bends and kinks
that which will cause severe back-up
pressure in hoses. Bends and kinks lead
to premature hose failure.
WARNING: DO NOT handle pressurized
hoses. Escaping oil under pressure can
penetrate the skin causing serious injury.
If oil is injected under the skin see a doctor
immediately.
WARNING: The operator must take
precaution against injury due to flying
debris caused by failure of the tool or
workpiece.
WARNING: DO NOT use this equipment
in circumstances where a sudden release
of pressure can result in loss of balance
causing damage or injury.
WARNING: DO NOT overload equip -
ment. Use the right size puller. When you
have applied maximum force, but the part
will not move, go to a larger capacity
puller. Resist sledging.
IMPORTANT: It is impossible to predict
the exact force needed for every pulling
situation. The amount of press fit and
force of removal can vary greatly between
jobs. Set-up requirements along with the size, shape
and condition of the parts being pulled are variables
which must be considered. Study each pulling
application before you select your puller.
IMPORTANT: Apply force gradually. Align
puller legs and grip arms. Be sure the
setup is rigid and puller is square with the
work.
WARNING: Immediately replace worn or
damaged parts with genuine Enerpac
parts. Enerpac parts are designed to fit
properly and withstand rated loads.
4.0 INSTALLATION
4.1 Grip pullers
Illustration 5 on page 6 shows how to build-up your
grip puller. The numbers in illustration 5 correspond
with the parts numbered in table A on page 7.
4.2 Cross bearing pullers
Illustration 6 on page 8 shows how to build-up your
cross bearing puller. The numbers in illustration 6
correspond with the parts numbered in table B on
page 9.
4.3 Internal pullers
Illustration 7 on page 8 shows how to build-up your
internal puller. The numbers in illustr. 7 correspond
with the parts numbered in table B on page 9.