Walker MC (18 HP) Owner's Manual

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Contents

Walker MC (18 HP) Owner's Manual Manual pdf 51 page image

Maintenance Instructions LUBRICATION47Transmission Reservoirand Air Bleed Plug Location3. If the fluid is below the COLD mark (or the trans-mission is not performing properly), loosen theair bleed plug (located on the top of transmis-sion case next to the plastic reservoir).a. If a small amount of fluid leaks from aroundthe air bleed plug:* The transmission is full of fluid.* Tighten the plug and fill the reservoir tothe COLD level mark.b. If no fluid leaks from around the air bleedplug:* Slowly add fluid into the reservoir untilfluid starts to leak from around the plug.(Transmissions are serviced from thefactory with Mobil 1 (15W50) Synthet-ic Oil). When it is necessary to add flu-id, refer to Specifications for the properfluid.* As soon as there is fluid leaking fromaround the air bleed plug, tighten theplug and fill the reservoir to the COLDlevel mark. Wipe any excess oil off ofthe transmission housing.IMPORTANT: DO NOT overfill the transmissionreservoir. This will result in oil leaking out of the res-ervoir cap vent when the transmission warms up. Itis preferable to add fluid to the transmission when itis cold and make sure the oil is not above or be-low the COLD level mark.IMPORTANT: The transmission reservoir has a finemesh screen in the bottom to trap dirt and foreignparticles from entering the transmission. When fill-ing the reservoir, fluid will flow quite slowly throughthis screen; so it is essential that there is fluid at thebleed plug before the transmission is considered full.IMPORTANT: Any attempt to remove or in any wayalter the filtering screen in the transmission reservoircould cause damage to the transmission and willVOID any transmission warranty.Changing Hydrostatic Transmission FluidThe hydrostatic fluid should be changed every 1000hours or two (2) years. Also, the fluid should bechanged if the natural color of the fluid has be-come black or milky (indicating possible over-heating or water contamination of fluid). The trans-mission is refilled using the factory service fluidnoted in TRANSMISSION Specifications. The fluid ischanged as follows:1. Park the mower on a level surface and stop theengine.2. Remove the lower drain plug and the air bleedplug. Allow the fluid to drain out.IMPORTANT: Clean any dirt from around theplugs and reservoir cap before removing them.3. Reinstall the lower drain plug, making sure therubber O-ring on the plug is in place and ingood condition.4. Refill the transmission through the air bleedplug hole until it is as full as possible.IMPORTANT: Avoid fluid contamination when fill-ing the reservoir. Use clean container, spout, fun-nel, etc. when pouring the fluid into the reservoir.5. Rotate the transmission input shaft about five (5)revolutions to allow any trapped air to escape.6. Before installing the air bleed plug, fill the reser-voir with fluid allowing a small amount to leakout of the air bleed plug hole.7. Install the air bleed plug and fill the reservoir tothe COLD level line.Cold LevelReservoir CapHot LevelAir Bleed Plug