Enerpac S Series, Инструкция

Страница: 12 / 40

12
3.7 To Connect the Hoses (Fig. 7)
WARNING Be sure all hoses and
fittings are rated for at least 10,000 psi
[690 bar] operation. Check that all
hydraulic couplings are securely
connected before operating the tool.
Failure to observe these precautions may
result in the hoses bursting or
disconnecting under pressure. High
pressure oil leakage may also occur.
Serious personal injury could result.
The tool is fitted with male and female 1/4
inch NPTF spin-on hydraulic couplings.
Use Enerpac twin safety hoses only. Refer
to the table below.
Enerpac hose
model number
Description
THQ-706T
Two hoses, 19.5 feet
[6m] long
THQ-712T
Two hoses, 39 feet
[12 m] long
Connect hoses to wrench as described in
the following steps:
• Be sure that all pressure in system
is relieved and that pressure gauge
indicates zero (0) psi/bar.
• Remove the hose dust caps.
• Connect the hose with the female
coupling (15) to the wrench advance
coupling (4).
• Connect the hose with the male coupling
(16) to the wrench retract coupling (5).
• At each connection, pull the collar on the
female coupling over the male coupling.
Engage threads and hand tighten the
collar.
• Connect the hoses to the pump.
Refer to the pump instruction manual.
4 Operation
4.1 Before Operation
• Be sure the nut or bolt to be fastened is
clean and free of loose dust or dirt.
• Be sure the nut threads properly engage
with the threads of the bolt, and that
cross-threading has not occurred.
• Be sure that the threads and the bearing
surface are liberally coated with the
correct bolt lubricant or anti-seize
compound.
• Make all torque calculations based
on the bolt lubricant's (or anti-seize
compound's) stated coefficient of
friction. Failure to do so may result in the
required bolt load not being achieved.
• Be sure that the backup wrench (used
to keep the nut or bolt on the opposite
end in place) is correctly positioned and
secured.
WARNING Be certain that backup
wrench is of the correct size and that
there is an adequate abutment surface.
Personal injury could occur if backup
wrench loosens or dislodges during
bolting procedures.
Fig. 7
ENGLISH