Maintenance (pump) – Multiquip LS-300 User Manual
Page 36
PAGE 36 — MAYCO LS300 CONCRETE PUMP • OPERATION AND PARTS MANUAL — REV. #4 (06/21/10)
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, ensure that there is no blockage in the hose
and line or in the shuttle tube (using the Shuttle Tube
Inspection Procedure). 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.
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 main
pressure gauge reading
MUST read ZERO.
DANGER - AMPUTATION RISK