Ch 5 page 11 HYDRAULIC SYSTEM SHOP MANUAL 41 Relief valve Port relief valve - Port B (lowering) 42 Relief valve Port relief valve - Port A (Lifting) 43 Flow control spool Bucket Lift spool 44 Orifice screw Poppet damping orifice 45 Poppet valve Load holding valve 46 Sequence valve Load holding activation valve 47 Orifice screw Damping orifice 48 M6 thread. Nothing installed Provision for installation of flow limitation orifice 49 Solenoid valve Emergency lowering valve