Komatsu — 20-201--.pdf

TESTING AND ADJUSTING STANDARD VALUE TABLE FOR CHASSIS PC130-7 20-7 (1) Model name PC130-7 Cate- gory Item Measurement condition Unit Standard value Permissible value Travel Hydraulic drift of travel • Hydraulic oil temperature: 45 – 55 °C • Engine: Stopped • Stop machine on slope of 12 degrees with sprocket on upper side. • Measure hydraulic drift of travel in 5 minutes. mm 0 0 Leakage from travel motor • Hydraulic oil temperature: 45 – 55 °C • Engine speed: High idling • Lock sprocket. • Measure leakage for 1 minutes while travel circuit is relieved. l/min Max. 5 Max.

10 Work equipment Hydraulic drift of work equipment Whole work equipment (Hydraulic drift of tooth tip) • Hydraulic oil temperature: 45 – 55 °C • Level and flat place • Bucket: Full of dirt and sand or filled with rated load (1,080 kg) • Level boom top, retract arm cylinder fully, and extract bucket cylinder fully. • Engine: Stopped • Work equipment control lever: Neutral • Start measuring hydraulic drift just after setting machine and measure every 5 minutes for 15 minutes. mm Max. 460 Max. 700 Boom cylinder (Retraction of cylinder) Max. 10 Max. 12 Arm cylinder (Extension of cylinder) Max. 80 Max. 90 Bucket cylinder (Retraction of cylinder) Max. 22 Max.

40 Work equipment speed Boom speed • Hydraulic oil temperature: 45 – 55 °C • Engine speed: High idling • Working mode: A • Measure time taken to move bucket between RAISE stroke end and ground touch point of bucket. RAISE LOWER sec 3.7 ± 0.4 Max. 4.3 2.6 ± 0.5 Max. 3.2