OPERATIONAL PERFORMANCE TEST / Wheel Loader Test Measurement: 1. Select the pedal, switches and FNR lever as fol- lows. 2. Perform measurement operation as follows. (including the buffer range) 2-1. Measurement of Lift Arm Cylinder (for Lifting) Operate the lift arm lever full stroke and meas- ure the movement time of the lift arm from the lowest position to the highest position. 2-2. Measurement of Lift Arm Cylinder (for Lowering) Lower the bucket onto the ground. Set the bucket in the horizontal position. Lift the lift arm to the highest position. Set the lift arm lever at the float position and measure the movement time of the bucket from the highest position to ground contact position.
2-3. Measurement of Bucket Cylinder Operate the bucket lever full stroke and meas- ure the movement time of the bucket from the full crowd position to the full dump position. 2-4. Measurement of Steering Cylinder Operate the steering wheel full stroke and measure the movement time of the steering wheel from the right to the left end, and from the left to the right end. CAUTION: Before measurement, confirm that there are no person or obstacles in the steering range. 3. Repeat the measurement three times. Calculate the average valve. Evaluation: Refer to Performance Standard Table in Group T4-2. Remedy: Refer to Trouble Shooting in Section T5.
T4-4-9 Accelerator Pedal Parking Brake Switch FNR Lever Work Mode Switch Lift Arm (for Lifting) Full Stroke (Engine: Fast Idle) ON N N Lift Arm (for Lowering) Neutral (Engine: Fast Idle) ON N N Bucket Full Stroke (Engine: Fast Idle) ON N N Steering Full Stroke (Engine: Fast Idle) OFF N N