2) 2) ENGINE SPEED ENGINE SPEED (1) Measure the engine speed at each power mode The engine speed at each power mode must meet standard RPM; if not, all other operational performance data will be unreliable. It is essential to perform this test first. CLUSTER Preparation Preparation Warm up the machine, until the engine coolant temperature reaches 50 C or more, and the hydraulic oil is 50 ± 5 C. Set the accel dial at 10 (Max) position. Measure the engine RPM. (2) (2) ① ② ③ (3) (3) ① Measurement Measurement Start the engine. The engine will run at start idle speed. Measure engine speed with a engine rpm display. Measure and record the engine speed at each mode (P, S). Select the P-mode.
Lightly operate the bucket control lever a few times, then return the control lever to neutral; The engine will automatically enter the auto-idle speed after 4 seconds. Measure and record the auto deceleration speed. Engine RPM display ② Power mode switch Pilot lamp(P, S) ③ ④ ⑤ Evaluation Evaluation The measured speeds should meet the following specifications. (4) (4) Unit : rpm Condition : Set the accel dial at 10 (Max) position. 6-4 Model Engine speed Standard Remark R60WVS RRO Start idle 1000±50 P mode 2000±50 S mode 1900±50 Auto decel 1100±50