13
Fig. 8
Fig. 7
Fig. 9
• Stop the pump immediately after work
has finished.
4.3.2 Nut and Bolt Loosening Information
• Be aware that more torque is usually
required to loosen a fastener than to
tighten it.
• Rusted fasteners (humidity corrosion)
may require up to twice the torque
required for tightening.
• Fasteners that are corroded due to
contact with sea water or chemicals will
require up to two and a half times the
torque required for tightening.
• Heat corrosion requires up to three times
the torque required for tightening.
WARNING
Do not apply more than
75 percent of the wrench’s maximum
torque when loosening nuts or bolts.
Avoid making sudden start-stop
movements (“shock loading”). Failure to
observe these precautions may cause a
catastrophic failure of the wrench to
occur, and wrench components under
high tension could become dangerous
projectiles. Serious personal injury could
result.
4.3.3 Loosening a Nut or Bolt
(Fig. 9 and 10)
• Apply penetrating oil to the threads.
Allow the oil to soak.
• Position the tool on the nut or bolt
with the anti-clockwise (-) side facing
upwards.
• Position the reaction foot (17) against a
suitable reaction point (18). The reaction
point will counteract the force caused by
operating the tool.
• Start the pump.
• Operate pump until nut or bolt is loose.
If the nut or bolt will be re-used, avoid
excess load when loosening.
ENGLISH
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