Owner's manual
23
WARNING
6.3 How to Move the Mower if the Engine Won’t Start
Rotate both of the hydro bypass valve levers on the side of each
hydraulic pump about ½ turn counterclockwise. It is important not to
over tighten these levers. Damage may occur to the pump if this valve
is over tightened.
6.4 Hydraulic System
Whenever servicing the hydraulic system, it is of the utmost importance to keep any dirt or debris
from getting into the system. Clean off all parts before disassembly and assembly. When any of the
hydraulic parts are disconnected or removed or when the oil is changed, air must be bled from the
system.
• Low Pressure Hose
• High Pressure Hose
• Arrow Indicates Direction of Flow
6.5 Bleeding Air from the Hydraulic System
If air is entrained in the system, loss of power, excessive heat, and damage to the hydraulic pumps
may occur. First, make sure the oil level in the reservoir is correct. Use fully synthetic oil: Mobil1
15W-50. Lift the mower so that the rear wheels are off the ground. Be careful to support the mower
so that it will not fall or tip while the system is bled of air. With the bypass valves open and the engine
running, slowly move the control levers back and forth five or six times. Now close the bypass valves
and with the engine running, slowly move the control levers back and forth five or six times. It may be
necessary to repeat the above steps until all the air is purged and the rear wheels are turning at
normal speed. After purging is complete, adjust the oil level in the reservoir if necessary.
6.6 Hydraulic Oil Tank Check / Fill
Checking Oil Level
1.Ensure mower is on a level surface.
2.Remove hex socket plug from oil level port on the right side of the tank.
3.Hydro oil should be at the bottom of the threads.
Filling Oil Level
1.Remove hex socket plug
2.Using a funnel, fill tank through oil level port until oil reaches bottom
threads of port.
Fill
Port