hitachi — Bucket and Bell Crank StopperClearances

OPERATIONAL PERFORMANCE TEST / Wheel Loader Test Evaluation: 1. Bucket Dumper Stopper 1-1. Cylinder Stroke Strokes A and B 2. Bucket Crowd Stopper 2-1. Cylinder Strokes D and E 1-2. Bucket Dump Angle C Model C ( ° ) ZW220 50 ± 2 ZW250 50 ± 2 2-2. Bucket Crowd Angle (F) Model F ( ° ) ZW220 50 ZW250 50 1-3. Clearance between Bell Crank Stopper and Cross Tube 2-3. Height from Ground to Bucket Lowest Portion (G) 2-4. Clearance between Bucket Dump Stopper and Lift Arm 1-4.

Clearance between Bucket Dump Stopper and Lift Arm Clearance at Unsymmetrical Contact Clearance Limit Left Right Clearance at Unsymmetrical Contact Longitudinal and Lateral Clearance of a Stopper Clearance Limit Clearance Limit Longitudinal and Lateral Clearance of a Stopper Left Right T4GB-04-04-009 Left Right Clearance Limit T4GB-04-04-009 Left Right NOTE: Standard dimensions indicate those of a new tire at the designated air pressure.

T4-4-7 Model Bucket Cylinder Lift Arm Cylinder A (mm) B (mm) ZW220 362±1.5 1120±2 ZW250 373±1.5 1180±2 Model Bucket Cylinder Lift Arm Cylinder D (mm) E (mm) ZW220 690 360 ZW250 719 371 Model Clearance between Bell Crank Stopper and Cross Tube (mm) ZW220 Standard 2.0 Limit - ZW250 Standard 2.0 Limit Model G (mm) ZW220 450 ZW250 425 Model Clearance at Unsymmetrical Contact (mm) Longitudinal and Lateral Clearance of a Stopper (mm) ZW220 Standard 0 0 Limit 0.5 1.0 ZW250 Standard 0 0 Limit 0.5 1.0 Model Clearance at Unsymmetrical Contact (mm) Longitudinal and Lateral Clearance of a Stopper (mm) ZW220 Standard 0 0 Limit 0.5 1.0 ZW250 Standard 0 0 Limit 0.5 1.0