Maintenance Instructions

LUBRICATION

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 en- tering 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) 80W-90 oil until the oil level is up to (submerges) 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 pres- sure 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 in-lb (2.7 N·m).

DSD52 Mower Deck Lubrication

There are several special lubrication requirements for the DSD52 mower deck in addition to the requirements detailed in the Chassis and Deck Lubrication illustration. Lubricate the locations shown in the Blade Spindle Lubrication and Gearbox, Dolly Wheel, and U-Joint Lubrication photos and check and maintain oil in the belt drive gearbox.

1.Lubricate the blade spindles every 25 hours with two (2) shots of SAE general purpose lithi- um or molybdenum base grease.

Blade

Spindles

Blade Spindle Lubrication

2.Check the oil level in the belt drive gearbox ev- ery 100 hours (or sooner if a visible oil leak has developed). With the deck in the normal oper- ating position, remove the level plug in the side of the gearcase. Add SAE E.P. (Extreme Pres- sure) 80W-90 gear lube to maintain the level to the plug. If the oil level is low, check the gear- box for any indication of an oil leak. If an oil leak is noted, the gearbox will need to be removed and rebuilt.

3.Lubricate the dolly wheel pivot every 25 hours with general purpose grease.

4.Lubricate the U-Joint in the drive shaft every 8 hours with SAE general purpose lithium or molybdenum base grease.

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