Lull 944E-42 Service Manual - Manual (Page 213)

10-1 944E-42
Section 10
Stabil-TRAK™ System
Contents
PARAGRAPH TITLE PAGE
10.1 Stabil-TRAK™ System Component Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 10-2
10.2 Stabil-TRAK™ Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3
10.2.1 Stabil-TRAK™ Solenoid Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3
10.3 Stabil-TRAK™ Electrical Circuit Operation and Troubleshooting . . . . . . . . . . . 10-4
10.4 Stabil-TRAK™ System Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-10
10.4.1 Stabil-TRAK™ System Test Instructions. . . . . . . . . . . . . . . . . . . . . . . . . 10-10
10.4.2 Stabil-TRAK™ System Test Procedures. . . . . . . . . . . . . . . . . . . . . . . . . 10-10
10.5 Stabil-TRAK™ Hydraulic Circuit Operation and Troubleshooting . . . . . . . . . . . 10-13
10.5.1 Troubleshooting Symptom Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-13
10.5.2 Stabil-TRAK™ Hydraulic Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-14
10.5.3 Stabilizer Cylinder Oil Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-14
10.5.4 Hydraulic Circuit Operation - Free Pivot Mode, Rod Oil Out . . . . . . . . . . . 10-15
10.5.5 Hydraulic Troubleshooting - Free Pivot Mode, Rod Oil Out. . . . . . . . . . . . 10-16
10.5.6 Hydraulic Circuit Operation - Free Pivot Mode, Base Oil Out . . . . . . . . . . 10-17
10.5.7 Hydraulic Troubleshooting - Free Pivot Mode, Base Oil Out . . . . . . . . . . . 10-18
10.5.8 Hydraulic Circuit Operation - Slow Pivot Mode, Rod Oil Out. . . . . . . . . . . 10-19
10.5.9 Hydraulic Troubleshooting - Slow Pivot Mode, Rod Oil Out . . . . . . . . . . . 10-20
10.5.10 Hydraulic Circuit Operation - Slow Pivot Mode, Base Oil Out . . . . . . . . . . 10-21
10.5.11 Hydraulic Troubleshooting - Slow Pivot Mode, Base Oil Out. . . . . . . . . . . 10-22
10.5.12 Hydraulic Circuit Operation - Locked Mode. . . . . . . . . . . . . . . . . . . . . . . . 10-23
10.5.13 Hydraulic Circuit Operation - Locked Mode, Frame Sway Right . . . . . . . . 10-23
10.5.14 Hydraulic Troubleshooting - Locked Mode, Will Not Frame Sway Right . . 10-25
10.5.15 Hydraulic Circuit Operation - Locked Mode, Frame Sway Left . . . . . . . . . 10-26
10.5.16 Hydraulic Troubleshooting - Locked Mode, Will Not Frame Sway Left . . . 10-27