Mec Speed Level 2684 ES, Руководство по обслуживанию и запасным частям

Страница: 175 / 206

“3084 Speed Level™ Sigma Lift” Service and Parts Manual November 2009
Page 4b-33
T
R O U B L E S H O O T I N G
- 3 0 8 4 E S
M O D E L
- - T
R O U B L E S H O O T I N G
C
H A R T
No auto-level
operation; manual level
operates
Switch or switch wiring problem.
Located inside upper control box Check switch and wiring
Level Sensor not calibrated See Tilt Sensor Calibration instructions found earlier in this
section.
System Interlock Check HELP messages using EZ-Cal
Unit will not accurately
level platform
Unit on too extreme an angle Relocate unit to more level ground
Level valve sticking Inspect/replace valves located behind lower control box
Excessive weight on platform Reduce weight to 1500 lbs max (680Kg)
Pressure relief valve out of adjustment Set steering relief valve SV-2 to 2000 PSI (138 bar)
Tilt sensor not calibrated or not calibrated
properly See Tilt Sensor Calibration instructions found earlier in this
section.
Level cylinder valves wired incorrectly Refer to schematic diagram for correct wiring.
Level cylinder hoses connected incorrectly See Hydraulic section for hose routing detail
Will not stay level;
drifts down
Counterbalance valve adjustment or failure Located on the outrigger cylinder, not adjustable. If valve is
suspect it must be replaced
Failure of cylinder internal seals Inspect and repair as necessary