1.20

SPECIFICATIONS

1.20

 

 

 

 

 

 

 

 

 

CUTTERHEAD LIFT SYSTEM AND STEERING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Drive Type:

 

 

Hydraulic.

 

 

 

Pump:

 

 

Hydraulic gear pump with integral relief valve.

 

 

 

Delivery Rate:

 

 

11 Litres per minute.

 

 

 

Steering:

 

 

Power beyond hydrostatic steering valve with priority flow to

 

 

 

 

 

steering and auxiliary flow to cutterhead lift system. Manual

 

 

 

 

 

emergency steering.

 

 

 

Cutterhead Lift Control:

 

 

Mechanical-hydraulic.

 

 

 

Relief Valve:

 

 

105 bar (1522 psi).

 

 

 

Weight Transfer:

 

 

Variable hydraulic applied weight transfer acting on all

 

 

 

 

 

cutterheads.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HYDRAULIC SYSTEM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Hydraulic Oil Type:

 

 

Refer - RECOMMENDED LUBRICANTS

 

 

 

 

 

 

AND HYDRAULIC FLUIDS.

 

 

 

Capacity:

 

 

40 Litres.

 

 

 

Cooling:

 

 

Forced air finned tube oil cooler.

 

 

 

Suction Line Filtration:

 

 

125 micron no bypass mesh filter.

 

 

 

Return line Filtration:

 

 

10 micron with 2 bar (29 psi) bypass check valve.

 

 

 

Transmission Filtration:

 

 

10 micron no bypass pressure filter.

 

 

 

Cleanliness Level:

 

 

ISO Code 18/13 or better (ISO 4406)

 

 

 

 

 

 

1300 - 2500 Particles/ml<15μ

 

 

 

 

 

 

40 - 80 Particles/ml>15μ

 

 

 

Maximum Oil Temperature:

 

 

950C

 

 

 

 

 

 

 

 

 

 

 

924916KG251004