Maintenance Instructions | LUBRICATION |
Mower Deck Gearbox Lubrication
The mower deck gearboxes (tee gearbox and blade drive gearboxes) are connected as a unitized assembly, and oil flows freely between them. The gearboxes are permanently lubricated (oil filled) and sealed requiring no scheduled lubrication. However, the gearbox oil seals should be checked every 25 hours for indication of an oil leak; particularly the lower seals on the blade drive gearboxes should be inspected, since they operate in a dirty environment. If an oil leak is noted, replace the oil seal and relu- bricate the gearbox assembly as follows:
1.Remove gearbox cover (footrest). Deck orien- tation should be the normal operating position.
Blade Drive
Gearboxes
Tee
Gearbox
Mower Deck Gearboxes
(shown with gearbox cover removed for clarity)
2.Clean the area around the individual gearbox cover plates to prevent contaminants from entering the gearcase.
3.Remove the screws securing the cover plates on the blade drive gearboxes.
4.Check the level of lubricant in the gearboxes. If the lubricant is low, add SAE E.P. (Extreme Pressure) 90W oil until the oil level is up to (sub- merges) the horizontal shaft in the gearbox (shaft parallel to cover plate).
NOTE: In case the gearboxes are completely drained of oil, approximately 5 fl. oz. (15 cl) of oil per gearbox is required to refill the gear drive assembly.
NOTE: Since the gearboxes are connected as a unit by connector tubes, it is necessary to add oil slowly. Allow a few minutes after adding oil for the oil to flow throughout the assembly and the oil level to stabilize before reassembly.
IMPORTANT: DO NOT overfill the deck gear- boxes. The gearbox assembly is not vented, and overfilling with oil will cause excessive pressure and result in oil leaks.
5.Check condition of the cover gasket and replace
if worn or damaged. Reinstall gearbox cover plates; torque screws to 24
Tractor PTO Gearbox Lubrication
The tractor PTO gearbox is permanently lubricated (oil filled) and sealed requiring no scheduled lubrica- tion. However, the gearbox oil seals should be checked every 25 hours for indication of oil leaks. If evidence of an oil leak is noted, replace the oil seal and relubricate the gearbox. The gearbox will need to be removed from the tractor to be serviced. Refill with SAE E.P. (extreme pressure) 90W oil until oil level is up to (submerges) horizontal shaft of gearbox (shaft parallel to cover). DO NOT overfill.
NOTE: In case the gearboxes are completely drained of oil, approximately 5 fl. oz. (15 cl) of oil per gearbox is required to refill the gear drive assembly.
PTO
Gearbox
Tractor PTO Gearbox
46