MAI M400NT - Connection Procedures; Electrical and Water Supply Connections; Machine Start-Up Sequence; Initial Power-Up and Water Supply Steps

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MAI International

GmbH

CONNECTIONS BEFORE

START-UP

Connect the main power plug on the control cabinet

with the cable to the construction site distribution

board.

Plug the drive motor into the socket on the control

cabinet.

Connect the water supply hose (use a minimum

diameter of ¾”) to the coupling in the water system.

START-UP

Switch on the machine by turning the master switch

to position “I”.

Close all the water supply and drain valves.

The machine may only be con-

nected to a construction site distri-

bution board fitted with a residual

current-operated circuit breaker.

Electrical protection: 3x25 A distri-

bution board, rated fault current

I=30mA

DANGER

Connect the water supply hose (minimum diameter

¾” for 4 bar min. dynamic water pressure). Slowly

open the water supply cock.

Connect the ~3X400V/50Hz ~3X220V/60Hz power

supply with the electricity cable (use only 5x4 mm²

H07RN cable).

Press the blue “WATER INJECTION” button and

set the required water volume by turning the knob

on the needle valve.

The water pressure must be at least approximately

2,5 bar when the valve is open (dynamic). If this is

not the case, the machine cannot be started or

stops automatically if already in operation.

Set the mode switch “REMOTE C – HAND - IN-

JECTION” to the “HAND” position. (All controls,

such as switches, indicators, alarms and buttons

are illustrated on page 11 and 16).