TX 413 Service Manual 11-3
HYDRAULIC TROUBLESHOOTING
Rev. 001
Foaming Fluid
Low Fluid Level
• Fill reservoir to the full mark
• Check system for external leaks
Water in the Fluid
• Drain, ush and replace uid
Incorrect Fluid
• Drain, ush and replace with proper uid
Air Leak Between Reservoir and Pump
• Tighten loose connection
• Replace damaged hose
Restricted Flow from Kinked/Dented Lines
• Replace affected lines
Worn Pump Seal
• Replace seal
• Check for contaminated uid
• Ensure pump alignment
Discolored/Burned Fluid
Hydraulic Fluid Dirty/Milky
Water in the uid (Milky)
• Change uid and lter and ush complete system
Failed Filter
• Replace lter
• Check system pressure and ow
• Restrictions
Metal Particles
• Change uid and replace lter
• Determine damaged components and repair and
replace
• Flush complete system
Kinked Hydraulic lines
• Locate affected line(s) and replace
Incorrect Fluid/Contaminated Fluid
• Drain, ush and replace with proper uid
Operational Troubleshooting
Loss of Hydraulic Function
No Fluid in the System
• Fill reservoir to the full mark
• Check system for external leaks
• Damaged components may result
Low Fluid Level
• Fill reservoir to the full mark
• Check system for external leaks
• Damaged components may result
Incorrect Fluid
• Drain, ush and replace with proper uid
• Damaged components may result
Dirty/Plugged Filter
• Replace Filter
• Determine the source of contamination
• Flush complete system
• Clean hydraulic tank
System Restriction
• Collapsed hoses
• Kinked tubing
Suction Line Air Leaks
• Determine if connection is loose and tighten
• Replace damaged hose or tting and o-ring
Pump Contaminants
• Clean pump
• Drain and ush the hydraulic system
• Clean hydraulic tank
Worn/Damaged Pump
• Repair or replace pump
• Check uid
• Check for proper alignment
• Leak
• Hydraulic restriction
Worn/Damaged Components
• Check Valves, wheel motors and cylinders for
damage/leaks
• Repair/Replace as necessary
• Belt or pulley (hydrostatic pump)
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