SECTION 31 - IMPLEMENT POWER TAKE-OFF (PTO) - CHAPTER 4
31-5
Step-up Gearbox - Disassembly
Remove the gearbox from the tongue, following the
steps described in previous section; “To Convert
Step-Up Gearbox for Different PTO Speed”.
1. Drain the oil from the gearbox.
2. Remove the cover plate, 1, from the gearbox by
removing eight cap screws and lock washers.
Pry the cover off of the gearbox, and clean off any
silicone sealant residue.
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3. Remove all three bearing caps, 1, by removing
the cap screws and lock washers, and pry the
bearing caps off. Be careful not to damage the
shims under the bearing caps. Pry the shaft seal,
2, out of the output shaft bearing cap.
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4. Drill a 10 mm (3/8 in) hole, 1, in the center of the
expansion plug, taking care not to damage the
shaft behind the plug. Pry the plug out of its
retaining groove in the gearbox with a punch or
screwdriver.
NOTE: The intermediate shaft has a 3/8 in. threaded
hole in it; use caution not to damage the threads while
drilling the hole in the plug, or when prying plug out
of the bore.
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