Major 1150 Slurry Vac, Operator'S Manual & Parts List

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6” Autocoupler
The Auto Coupler hydraulic circuit incorporates a hydraulic pressure valve, which is pre-set, by the manufacturer
prior to the tankers dispatch. Altering the valve can increase the sealing pressure. An incorrectly set valve can
damage the machine.
Filling operation (Single spool- Vacuum pump & Coupler on same circuit)
1. Start the vacuum pump.
2. With the funnel in place and the flexible pipe in the slurry storage tank
3. Lower the Autofill boom into the funnel. Keep spool depressed until
Vacuum Pump changeover automatically changes to Vacuum.
4. Open the gate valve on the boom using separate Spool control
5. When the tank is full, close the gate valve, stop the PTO and raise
the boom into the transport position. Keep spool depressed until
Vacuum Pump automatically changes to pressure.
Filling operation (Two spools - Vacuum pump & Coupler on separate circuits)
1. Start the vacuum pump.
2. With the funnel in place and the flexible pipe in the slurry storage tank
3. Lower the Autofill boom into the filler cone.
4. Using separate spool, change vacuum pump controls to Vacuum
5. Open the gate valve on the boom using separate spool.
6. When the tank is full, close the gate valve, stop the PTO and raise the boom
into the transport position & change vacuum pump to pressure position.
Hydraulic/Air brakes setup (if applicable)
If a tanker is equipped with a single line air brakes system and you wish to use hydraulic brakes only the following must
be carried out:
1. Disconnect both air hoses (A) (yellow and red).
2. Press the Shunt Valve button (B) . Repeat push/pull 3-4 times.
3. Pull the cord (C) at the bottom of the air tank to release any leftover air.
4. Ensure that air is out of the system.
A
B C
C
PUSH TO
SHUNT