Enerpac RSL2 - Torque Wrench Reaction Setup

10
RSL Torque Wrench
4.3 Flange Disassembly (Loosen)
4.3.1 Use following when corrosion is present
to minimize required torque to allow lower
pump pressure and increase pump and
tool life:
a. Apply Enerpac Hydraulic oil to nuts and
wait for 5 minutes (minimum).
b. Heat fastener for hard applications
with severe corrosion, high torque
requirements, etc.:
i. Consult with equipment manufacture.
ii. Take necessary safety precautions for
high temperatures (flammable materials,
proper protective equipment, etc.).
iii. Be safe: allow parts to cool.
4.3.2 Loosen all nuts 1/8 turn. To increase tool
and pump life, set lowest pressure which
consistently works.
a. Cameron BOP Bonnet – loosen bolts in
four post pattern
b. Other – loosen bolts sequentially from
nut to nut
4.3.3 If torque required to initially loosen nuts
was:
a. Less than 150% of tightening torque,
then remaining tension may be fully
removed from each stud sequentially.
b. Greater than 150% tightening torque,
repeat 4.3.2.
Stud or flange damage may occur
when all tension is removed from first stud without
loosening others. Damage occurs because
loosened stud’s load is transferred to remaining
studs.
4.4 Hexagon Torque Wrench Set Reaction
4.4.1 Hexagon insert must be correct size AF.
4.4.2 Hexagon nut must have full nut thickness
covered by hex insert.
4.4.3 Hexagon wrench set must be square to
stud center line.
4.4.4 Reaction surface must be parallel to
reaction arm surface.
4.4.5 Determine if thread is right hand (RH) or left
hand (LH).
4.4.6 Determine if fastener will be loosened or
tightened:
a. Plan to place hexagon cassette on nut
for loosening.
b. Plan to place hexagon cassette on nut
for tightening (See Fig. 4.4-1 for RH
thread)
Fig 4.4-1 Correct Reaction For Hexagon Wrench
Set With Reaction Arm
(Reaction arm must be placed as shown)
4.4.7 Fig. 4.4–1 - Proper hexagon wrench set
reaction with reaction arm.
a. Preferred reaction method is to use
reaction arm. A reaction arm increases
reaction distance which reduces
reaction force and increases tool life.
b. Contact Enerpac Customer Service, or
Engineering for special reaction arms or
spline covers.
c. Do not react at sharp angle on reaction
arm.
i. Arrows in Fig. 4.2-2 (upper left) show
this.
ii. May cause damage to spline and/or
reaction arm.
iii. Contact Customer Service for these
applications.
Fig 4.4-2 Hex Tool Reaction With Reaction Arm
AVOID ANY
ANGULAR
ENGAGEMENT
NO ANGULAR
ADJUSTMENT
ALLOWED.
IN LINE
REACTION
ONLY
CORRECTINCORRECT