Multiquip manual LS400/LS500 Pump Maintenance Pump, Cleaning the Pump and Delivery System

LS400/LS500 PUMP — MAINTENANCE (PUMP)

TABLE 5. MAINTENANCE CHECK SCHEDULE

	Daily	Hour-	Wee-	Month-	6-Mont-	Operational
		ly	kly	ly	hs	Hours
Engine Oil	X			X
Engine Air Filter				X
Fuel Filter				X
Hydraulic Oil Level	X					500 hrs.
Lubrication Box		X
Replace Hydraulic Oil						1000 hrs.
Clean Hydraulic Filters					X	500 hrs.
Axle Crank	X					2 hrs
Grease Shuttle Tube and Hopper						2 hrs
Outlet Zerk Points
Check System Pressure			X			40 hrs.
Check Hardware for Tightness			X			40 hrs.
Check Cutting Ware Ring and Plate			X
Check Trailer Brakes Function	X
Check Brake Lights	X
Check Tire Conditions	X
Inspect Saftey Devices / Decals	X
Check Wheel Bearings					X
Check Battery				X
Inspect Brake Lining					X
Visually Check for Oil Leaks	X

DANGER - AMPUTATION RISK

During routine maintenance or removing material blockage, 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, follow described lock out-tag out procedures. 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 make sure the accumulator circuit pressure reads

zero prior to performing any maintenance on the pump.

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. 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.

PAGE 36 — MAYCO LS400/LS500 PUMP — OPERATION AND PARTS MANUAL — REV. #6 (09/19/11)