Page 42 Section 5 Maintenance
MSD SABER SERIES SHEARS
SPEED VALVE ADJUSTMENT
The speed valve on LaBounty® shears is factory
adjusted by Stanley LaBounty technicians prior to
shipment. Field adjustments of the valve should
only be necessary if the operator senses that the
valve is not functioning properly. Some indicators of
a poorly functioning valve are:
• The shear does not consistently shift into speed
mode when closing the jaw
• The shear jaw continues to close after the operator
has let go of the controls
• The shear shifts into speed mode, but seems to
lack power
Follow the procedure below if speed valve adjust-
ment is necessary.
TOOLS NEEDED
The following tools are recommended for speed
valve adjustment on any Stanley LaBounty Saber
Series Hydraulic Cylinder:
1. Open-end or box end wrenches (12-19 mm sizes)
2. Digital gauge kit (Stanley LaBounty P/N 169832)
3. Allen wrenches (4-12 mm sizes)
SAFETY POINTS
Stanley LaBounty recommends that the following
safety precautions be followed when adjusting the
speed valve on any Stanley LaBounty Saber Series
Hydraulic Cylinder.
Reminder: Always wear the proper personal protec-
tion equipment including the following:
1. Steel toe safety shoes or boots.
2. Shatter proof safety glasses and head wear such
as a hard hat.
Relieve pressure before disconnecting hydraulic
lines. Tighten all connections before applying
pressure. Keep hands and body away from pin
holes and nozzles, which can eject fl uids under
high pressure. Use a piece of cardboard to
search for leaks. Escaping fl uid under pressure
can penetrate the skin and cause serious
injury. If ANY fl uid is injected into the skin, seek
immediate medical attention.
DO NOT let hydraulic oil get in contact with the
skin as it could cause severe burns. Hydraulic oil
becomes hot during operation. Wear adequate
protective clothing and safety equipment.
Chemicals used on Stanley LaBounty Saber
Series hydraulic cylinders include hydraulic
oil; refer to the excavator operator’s manual
and have MSDS sheets and proper treatment
equipment available.
3. Insulating gloves for low and high temperatures.
4. Overalls or other uniform—no loose fi tting cloth-
ing that may become entangled in machinery
5. Hearing protection—ear muffs or plugs.
