Maintenance; Troubleshooting - Cub Cadet chl 500 Manual

Important: Use only a good grade hydraulic jack oil. Avoid mixing different types of fluid and NEVER use brake fluid, turbine oil,
transmission fluid, motor oil or glycerin. Improper fluid can cause premature failure of the jack and the potential for sudden and
immediate loss of load.
HOW TO REPLACE THE HYDRAULIC CYLINDER
1) To remove the cylinder, remove the bolts holding the cylinder in place.
2) Remove old cylinder and install new cyclinder using the same hardware.
ADDING OIL TO HYDRUALIC CYLINDER
1) With saddle fully lowered and pump piston fully depressed,
set jack in its upright, level position. Remove oil filler plug.
2) Fill until oil is level with the filler plug hole, reinstall oil filler plug.
CHANGING OIL IN HYDRUALIC CYLINDER
For best performance and longest life, replace the complete
fluid supply at least once per year.
1) With saddle fully lowered and pump piston fully depressed,
remove the oil filler plug.
2) Lay the jack on its side and drain the fluid into a suitable container.
NOTE: Dispose of hydraulic fiuid in accordance with local regulations.
3) Fill with good quality jack oil. Reinstall oil filler plug.
We recommend Mobil DTE 13 or equivalent.
LUBRICATION
1) A coating of light lubricating oil to pivot points, axles and hinges will help
to prevent rust and assure that wheels, casters and pump assemblies move freely.
2) Periodically check the pump piston and ram for signs of rust or corrosion.
Clean as needed and wipe with a clean, oil soaked rag.
NOTE: Never use sandpaper or abrasive material on these surfaces.
STORAGE
When not in use, store the Bottle Jack with pump piston and ram fully retracted.

TROUBLESHOOTING

Symptom
Jack will not lift load
Jack bleeds off after lift
Jack will not lower after
releasing the valve
Poor lift performance
Will not lift to full extension

MAINTENANCE

Possible Causes
• Check to make sure you are on a level surface.
Gravel is not considered a level surface.
• Make sure your parking brake is off on your
mower so it an roll as you are lifting.
• Release valve not tightly closed
• Overload condition
• Release valve not tightly closed
• Overload condition
• Hydraulic unit malfunction
• Make sure you have Disengaged the parking
brake and removed the wheel chocks
• Make sure you are releasing the locking bar
• Fluid level low
• Air trapped in system
• Fluid level low
Extension
Screw
Filler
Plug
Release
Valve
Corrective Action
• Ensure release valve is tightly closed
• Remedy overload condition
• Ensure release valve is tightly closed
• Remedy overload condition
• Contact Customer Service
• Contact Customer Service
• Ensure proper fluid level
• With ram fully retracted, remove oil filler plug
to let pressurized air escape, reinstall oil filler
plug
• Ensure proper fluid level
Saddle
Ram
Socket
Piston
Assembly
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