The Series 40E engine may be equipped with a rear-mounted power take-off (PTO).
Removal of Rear PTO Housing Assembly
Follow these steps to remove the rear PTO housing assembly.
Install a 5/8 in. -UNC- lifting eye into tapped hole located on top of the rear PTO housing. Use an appropriate lifting device to support the rear PTO housing.
Loosen nuts securing the lubrication supply tube connecting the crankcase to the rear PTO housing. Remove tube. See Figure
1. Lubrication Tube
Lubrication Supply Tube Removal
Remove lubrication supply elbow from rear PTO housing.
Remove four (4) pipe plugs from the rear PTO housing. Save pipe plugs for installation.
Use a hex key to remove the special nut inside the rear PTO housing found under the pipe plug. Take care that the nut is not dropped into the housing. See Figure
Special Nut Removal
Remove the three mounting bolts from inside the rear PTO housing after the pipe plugs have been removed. See Figure
PTO Mounting Bolts Removal
Install the four pipe plugs back into the rear PTO housing.
Remove the remaining four mounting bolts from the rear PTO housing assembly. Place an oil drain pan underneath rear PTO housing assembly. Approximately one quart of oil remains in the housing sump area.
Pull the rear PTO housing assembly straight back, away from the crankcase.
Remove one hollow dowel pin and four O-rings from the housing.
Lay rear PTO housing assembly face down on the engine mounting surface side. Remove dowel guide pins. Some additional oil may drain from the housing as it is laid flat.
Installation of Rear PTO Housing
Follow these steps to install the rear PTO housing.
Lay the rear PTO housing assembly with the transmission side face down.
Install one large O-ring and three small O-rings into the O-ring grooves using Aviation Permatex #3.
Install two hollow dowel pins into rear PTO housing assembly
Inspect threads and replace stud if necessary. Install stud into crankcase.
Install the new camshaft O-ring over the camshaft end opening at the rear of the crankcase.
Install two guide dowel pins, used during removal procedure, into the crankshaft flange at the 3 and 9 o'clock positions. See Figure
Guide Pin Installation
If not removed already, remove the four pipe plugs from the rear PTO housing assembly.
Lift the rear PTO housing assembly and align with the crankcase.
Slowly guide the rear PTO housing assembly over the two guide pins mounted in the crankshaft and studs mounted in the crankcase. Install the seven mounting bolts and torque. Refer to Specifications
. See Figure