ST-70 — PARTS & OPERATION MANUAL — REV. #4 (05/29/07) — PAGE 81
The service procedures contained in this manual are intended
for use by an individual equipped with the proper tools and
equipment and familiar with safe shop practices.
Should questions arise during the service or repair . . . stop . . .
and contact Mayco service department.
Do not open hydraulic lines or loosen hydraulic
fittings while engine is running! Hydraulic fluid
under pressure can penetrate the skin, blind,
cause burns or create other potentially
dangerous hazards follow all safety
instructions as described throughout this
manual.
Warning! Danger of Amputation!
The Mayco pump is equipped with a nitrogen
accumulator, which stores hydraulic energy.
You will be required to put your hand in the
concrete cylinders or near the suttle. You are
at extreme risk if the engine is running or if
pressure is in the hydraulic system. Prior to
working on the pump, stop the engine by turning off the ignition
switch, remove starter key, place a “Do not operate” tag over the
switch and disconnect the battery. The pressure reading on the
accumulator pressure gauge must read zero. Always relieve
the accumulator circuit to zero pressure prior to working on the
pump.
Use only original Mayco components. The
quality of the components is critical to the
operator’s safety and performance of the
machine.
ST-70 — SERVICE INFORMATION
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