SkyTrak 6042 Service Manual - Manual (Page 518)

Stabil-TRAK™ System
10.12 Model 6042 Legacy Origin 7/02
10.5 STABIL-TRAK™ HYDRAULIC CIRCUIT OPERATION AND TROUBLESHOOTING
The function of the Stabil-TRAK™ system varies under
different operating conditions. The basic modes include
the FREE PIVOT MODE, FINAL POSITIONING MODE
and LOCKED MODE. The hydraulic operation and troubleshooting information for
each of these modes will be described on the following
pages.
10.5.1 Troubleshooting Symptom Chart
Symptom Conditions Reference
With the boom below 40°, when
swaying the frame to the right, the left
front tire comes off the ground. Ignition ON, engine running
Boom angle is below 40°
Travel select lever is in (F) FORWARD or
(R) REVERSE
Park brake OFF
Service brake DISENGAGED
Refer to Section 10.5.3, “Hydraulic Circuit
Operation - Free Pivot Mode, Rod Oil Out”
and Section 10.5.4, “Hydraulic
Troubleshooting - Free Pivot Mode, Rod
Oil Out.”
With the boom below 40°, when
swaying the frame to the left, the right
front tire comes off the ground. Ignition ON, engine running
Boom angle is below 40°
Travel select lever is in (F) FORWARD or
(R) REVERSE
Park brake OFF
Service brake DISENGAGED
Refer to Section 10.5.5, “Hydraulic Circuit
Operation - Free Pivot Mode, Base Oil Out”
and Section 10.5.6, “Hydraulic
Troubleshooting - Free Pivot Mode,
Base Oil Out.”
While traveling, ride feels spongy
(riding on 3 wheels). Ignition ON, engine running
Boom angle is above 40°
Travel select lever is in (F) FORWARD or
(R) REVERSE
Park brake OFF
Service brake DISENGAGED
Refer to Section 10.5.7, “Hydraulic
Circuit Operation - Final Positioning
Mode, Rod Oil Out” and Section 10.5.8,
“Hydraulic Troubleshooting - Final
Positioning Mode, Rod Oil Out.”
Stabil-TRAK™ light in instrument
cluster is not ON. Ignition ON, engine running
Boom angle is above 40°
Travel select lever is in (N) NEUTRAL, or
Park brake ON or Service brake
ENGAGED
Refer to Section 10.5.11, “Hydraulic
Circuit Operation - Locked Mode” and
Section 10.5.14, “Hydraulic
Troubleshooting - Locked Mode, Will Not
Frame Sway Right” or Section 10.5.15,
“Hydraulic Troubleshooting - Locked
Mode, Will Not Frame Sway Left.”
With the boom above 40°, when
swaying the frame to the right, the left
front tire comes off the ground. Ignition ON, engine running
Boom angle is above 40°
Travel select lever is in (N) NEUTRAL, or
Park brake ON or Service brake
ENGAGED
Refer to Section 10.5.12, “Hydraulic
Circuit Operation - Locked Mode, Frame
Sway Right” and Section 10.5.14,
“Hydraulic Troubleshooting - Locked
Mode, Will Not Frame Sway Right.”
With the boom above 40°, when
swaying the frame to the left, the right
front tire comes off the ground. Ignition ON, engine running
Boom angle is above 40°
Travel select lever is in (N) NEUTRAL, or Park
brake ON or Service brake
ENGAGED
Refer to Section 10.5.13, “Hydraulic
Circuit Operation - Locked Mode, Frame
Sway Left” and Section 10.5.15,
“Hydraulic Troubleshooting - Locked
Mode, Will Not Frame Sway Left.”