TESTING AND ADJUSTING STANDARD VALUE TABLE FOR CHASSIS 20-4 PC130-7 (1) Model name PC130-7 Cate- gory Item Measurement condition Unit Standard value Permissible value Oil pressure Unload pressure • Hydraulic oil temperature: 45 – 55 °C • Engine speed: High idling • Working mode: A • Pump outlet pressure when all levers are in neutral MPa {kg/cm2} 2.9 ± 0.5 {30 ± 5} 2.9 ± 0.5 {30 ± 5} Boom relief pressure • Hydraulic oil tempera- At normal ture: 45 – 55 °C relief • Engine speed: At power High idling max. • Working mode: A At normal • Pump outlet pressure relief when measured circuit is relieved At power max. At normal relief At power max.
At normal relief MPa {kg/cm2} 31.9+ 2.0 0 {325+ 20 } 0 33.3 – 36.8 {340 – 375} At power max. 34.8 ± 1.0 {355 ± 10} 36.3 – 39.2 {370 – 400} Arm relief pressure At normal relief 31.9+ 2.0 0 {325+ 20 } 0 33.3 – 36.8 {340 – 375} At power max. 34.8 ± 1.0 {355 ± 10} 36.3 – 39.2 {370 – 400} Bucket relief pressure At normal relief 31.9+ 2.0 0 {325+ 20 } 0 33.3 – 36.8 {340 – 375} At power max. 34.8 ± 1.0 {355 ± 10} 36.3 – 39.2 {370 – 400} Swing relief pressure 28.9 ± 1.5 {295 ± 15} 28.9 – 32.9 {295– 335} Travel relief pressure 34.8 ± 1.0 {355 ± 10} 36.3 – 39.2 {370 – 400} Control circuit basic pressure • Hydraulic oil temperature: 45 – 55 °C • Engine speed:
High idling • Outlet pressure of self-reducing pres- sure valve when all levers are in neu- tral MPa {kg/cm2} 3.23 ± 0.2 {33 ± 2} 2.84 – 3.43 {29 – 35} LS differential pres- sure • Hydraulic oil temperature: 45 – 55 °C • Engine speed: High idling • Working mode: A • Pump pressure - LS pres- sure When all levers are in neutral MPa {kg/cm2} 2.7+ 1.0 – 0.7 {28+ 10 } – 7 2.7+ 1.0 – 0.7 {28+ 10 } – 7 When travel sys- tem runs idle at Hi 2.2 ± 0.1 {22.5 ± 1} 2.2 ± 0.1 {22.5 ± 1}