Multiquip ST-45HRM Septic System User Manual


 
PAGE 44 — MAYCO ST-45HRM PUMP — OPERATION & PARTS MANUAL — REV. #4 (07/16/04)
ST-45 PUMP — MAINTENANCE (PUMP)
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CLEANING THE PUMP AND DELIVERY SYSTEM
Cleaning the pump is a very important operation as it determines
how the machine will pump the next time it is used.
At the end of every pour, or because of long delays during a
pour, the pump and delivery system must be thoroughly cleaned
by removing all concrete material.
1. Following the “Clearing Concrete Blockage” operating
procedure on page 26, ensure that there is no blockage in
the hose and line or in the shuttle tube (using the Shuttle
Tube Inspection Procedure, page 26-27). If a blockage
exists, clear it.
2. Pump concrete until the opening of the concrete cylinder
intake in the hopper is visible.
3. Stop the pump.
4. Carefully disconnect the first hose joint at the shuttle tube
discharge elbow.
DANGER
You will be required to put your hand in the concrete cylinders or
near the shuttle tube. You are at
EXTREME RISK
of injury or
AMPUTATION
if the engine is running or if pressure is in the
hydraulic system.
Prior to performing any maintenance on the pump, stop the engine
by turning off the ignition switch and remove the 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 performing any maintenance on the
pump.