Manual

13
SAFETY FEATURES
SAFETY RELEASE BYPASS VALVE (SRBV)
The SRBV is a part of the hydraulic system. Should the system pressure exceed the
predetermined pressure setting, the SRBV will bypass the pump output back to the oil
reservoir. The SRBV is factory set to the proper pressure, which will prevent damage to
the mechanical, hydraulic, and electrical systems due to overloading, obstruction, or
other circumstances. This setting should be tested once installation is complete (see
Installation section).
CONTROL TRANSFORMER SECONDARY FUSE
This fuse is attached to the electrical control transformer and protects the 115 volt
control circuit from damage should a fault occur which would result in excessive electric
current flow. Should the fuse activate (blow) it will prevent the operation in either
direction and the interlock circuit will not operate. These fuses are located in the control
enclosure.
DANGER!
High voltage! May cause personal injury or death. Repairs should only be
performed by a qualified electrician or service technician and OSHA
requirements for Lock-Out, Tag-Out must be followed!!
MOTOR STARTER OVERLOADS (MSO)
These are current sensing devices that are located in the three legs of the electric motor
primary power circuit (208,230, or 460 volt). They protect the motor from excessive
current draw if it becomes overloaded, experiences low line voltage, or has a short
circuit. Should any leg sense an over-current situation the element will heat up and trip
the heat sensitive device housed in the motor starter coil circuit. Power is removed to
the coil and the three line power contacts are opened in the motor primary power circuit.
This will stop the motor from rotating until the overloads are reset and/or the fault is
cleared which caused the trip condition.
NOTE: The MSO will only affect the “UP” circuit. The platform carriage can be lowered
if the MSO trips.