How to Change Hydraulic Fluid in Zero Turn Mowers: White Outdoor ZT Series

Checking Hydraulic Oil

Check the oil level of hydraulic units only when the engine is OFF.

During initial break-in (first five hours of operation), check oil before each use and after every hour of operation.

During normal operation, check oil after 50 hours of operation.

•Flip seat up and clean the area around the hydraulic oil dipstick to prevent debris from entering the crankcase. See Figure 15.

•Remove the hydraulic fill plug/dipstick and read the

level:

If hydraulic oil level is inside operating range, then do nothing.

If hydraulic oil level is below operating range, the add hydraulic oil before operating. Also check for leaks.

If hydraulic oil level is above operating range, then drain excess oil before operating.

•Reinstall the dipstick completely into the fill tube.

Hydraulic Fill

Plug/Dipstick

Hydraulic Fill

Point

Figure 15

Adding Hydraulic Oil

WARNING: Never overfill the hydraulic units. Damage can result if the oil level is not within the operating range. When adding hydraulic oil, do so in small quantities and recheck the oil level before adding more.

•Place the Z-Series on a level surface and engage the parking brake.

•Stop the engine and remove the key from the ignition switch.

•Clean the area around the hydraulic oil dipstick to prevent debris from entering the crankcase.

•Remove the hydraulic fill plug and insert a clean funnel into the hydraulic fill point. See Figure 15.

•Pour proper amount of hydraulic oil level, insert the dipstick, and check the hydraulic oil level.

Draining Hydraulic Oil

•Place the Z-Series on a level surface and engage the parking brake.

•Stop the engine and remove the key from the ignition switch.

•Remove the mower deck. See Removing the Mower Deck section.

•Flip seat up and clean the area around the hydraulic oil dipstick to prevent debris from entering the crankcase.

•Remove hydraulic fill plug/dipstick.

•Place a suitable container (at least 2 gallon) under the hydraulic oil filter.

•Remove the hydraulic filter to allow hydraulic oil to drain. See Figure 16.

Hydraulic

Oil Filter

Left Transmission

Drain Plug

Figure 16

•Place a small pan under the skid plate and drain oil from both left and right axles.

•Replace both axle drain plugs and install new hydraulic oil filter.

•Add proper amount of hydraulic oil to reservoir.

•Run and check oil level.

Replacing The Head Lamp Bulb

•Detach the bottom of the rubber boot cover on the drive handles.