Walker MBK23 Operator's Manual

Contents

Maintenance Instructions LUBRICATION433. Reinstall drain plugs.4. Remove the oil reservoir hose attached to theelbow on top of the transaxles and remove theelbows to access the oil fill openings.5. Fill the transaxles with 20W-50 (API ServiceClass SL or higher) oil through the openingwhere the elbows were. Fill up to the opening.6. Before reinstalling the elbows, screw the lock-ing nut on the elbows down until they are snug(the o-ring on the elbow will be to the bottom ofthe o-ring groove).Elbow Screw LockingNut DownReinstall Transaxle Elbows7. Reinstall the elbows. When the elbow begins tobe snug, position the elbow as it was when re-moved and tighten the locknut. Reinstall reser-voir hoses to elbows.8. Fill reservoir to 1/4-1/2 in. (6-13 mm) with20W-50 (API Service Class SL or higher) oil.9. Start and drive the unit for 1 - 2 minutes.10. If the transaxle sounds noisy or has poor steer-ing response, there may be air trapped in thetransaxle. Follow purge instructions below.11. To purge air from transaxle, raise unit and blockwith tires off the ground. With engine running,slowly move Forward Speed Control forwardand backward 5 to 6 times. Turn off engine andcheck oil level and add if needed. Repeat pro-cedure until transaxle operate at normal noiselevels and move smoothly in forward and re-verse.Grease Fitting and Oil Point LubricationLubricate the grease fittings and oil points after every25 hours of operation. Lubricate more often whenoperating in dusty or dirty conditions. Use SAEgeneral purpose lithium or molybdenum base greasefor grease fittings and light machine oil (SAE 10) tolubricate oil points. Lubricate the locations shownin the Chassis and Deck Lubrication Pointsillustration.NOTE: PTO universal joints (on the deck and trac-tor) require routine lubrication after every 8 hoursof running time.NOTE: The best way to lubricate the PTO tube halfof the universal joint assembly is to remove it fromthe tractor. See instructions for removing and install-ing PTO quick coupler, refer to Deck Installation inMower Deck Installation on Tractor in the Assem-bly Instructions.