21
RSL Torque Wrench
6 Troubleshooting
Symptom
Cause
Remedy
Hydraulic fluid leaks from torque
wrench drive.
Torque wrench drive seals are
worn.
Replace torque wrench drive
seals.
• Torque wrench drive rod does
not extend or retract.
• Pump gauge shows
hydraulic pressure.
• Pump is running.
1. Quick connect couplings are:
a. Improperly assembled.
b. Worn and not properly
engaged.
2. Piston seal is worn and
hydraulic fluid is leaking past
piston.
1. Clean and properly connect
couplings.
Use
pliers
to
tightening screw-on type.
2. Replace worn couplings.
3. Change piston seal.
Torque wrench drive rod does
not fully extend when tool is not
mounted on a stud.
1. Low console fluid level.
2. Air in hoses.
1. Add proper hydraulic fluid.
See pump manual.
2. Remove air. See Section
4.6.11.
• Torque wrench drive rod does
not extend or retract.
• Pump gauge reads zero.
• Pump is running.
1. Air valve sticks due to:
a. Moisture, or dirt in air
supply.
b. Valve corrosion.
2. Solenoid valve sticks.
1. See pump manual.
2. If
possible,
install
valve
upgrade.
3. Air valve:
a. Clean air valve.
b. Service air line filter
4. Solenoid valve:
a. Clean solenoid valve.
b. Check line voltage.
Tool operates backwards.
Advance stroke button retracts
piston rod.
QC's are reversed on hoses,
pump, or torque wrench drive.
Properly install QC's.
Tool does not operate even
though pump is running and
all connections are properly
connected.
1. Improper torque wrench drive
and wrench assembly.
2. Retractor pin is sheared.
1. Assemble correctly.
2. Replace retractor pin.
Wrench operation sluggish and/
or noisy.
Poor lubrication.
1. Disassemble wrench.
2. Clean and inspect.
3. Replace broken parts as
needed.
4. Lubricate all moving surfaces.
Nut partially returns with socket
when torque wrench drive
retracts.
Torsion on stud is causing nut to
return with stud.
Properly lubricate stud and nut
threads.
Nut rotates with socket for torque
wrench drive extension and
returns to starting position on
retraction.
• Nut too loose and thread
friction will not overcome
pawl spring.
• Tool loses “ratchet” capability.
Tighten nut sufficiently before
using tool.
Nut does not rotate as many
degrees as wrench (or socket).
1. Tool
is
not
level
or
perpendicular
to
stud
centerline (“out of square”
engagement).
2. Nut corners are rounded off.
3. Socket or hex insert is over-
size.
1. Reposition tool and/ or
reaction arm so it is level
and perpendicular to stud
centerline (perform “floor
test”).
2. Replace nut.
3. Use smaller socket or hex
insert.