Fill hydraulic reservoir. (See Check Hydraulic Oil Level in Maintenance—Every 10 Hours or Daily section.)

Outlet hose from tank to pump is blocked

Check suction strainer for blockages. Clean if necessary.

Hydraulic oil viscosity and type is incorrect

Drain and fill hydraulic system. (See Change Hydraulic Oil in Maintenance—Every 4000 Hours section.)

Check suction strainer for blockages. Clean if necessary.

Breather is blocked

Replace breather filter. (See Replace Hydraulic Reservoir Breather in Maintenance—Every 4000 Hours section.)

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