Wheel Hub Slotted Nut Torque Specification

Maintenance

Hydro Oil	Change Interval
Exmark Premium Hydro	500 Hours
Oil (Preferred)
Mobil 1 15W50	250 Hours

10.Remove the catch pan and properly dispose of hydro oil and filter according to local codes.

11.Re-install the pump drive belt.

12.Start engine and move throttle control ahead to full throttle position. Move the speed control levers to the full speed and run for one minute. Shut down the machine, allow the hydros to cool and recheck oil level.

13.Remove the jack stands.

Note: Do Not change the hydraulic system oil (except for what can be drained when changing filter), unless it is felt the oil has been contaminated or been extremely hot.

Changing oil unnecessarily could damage hydraulic system by introducing contaminants into the system.

Wheel Hub - Slotted Nut Torque Specification

Service Interval: After the first 100 hours

Every 500 hours thereafter

Torque the slotted nut to 211-260 ft-lb (286-352 N-m).

Note: Do Not use anti-seize on wheel hub.

2.Wait for muffler to cool.

3.If any breaks in the screen or welds are observed, replace arrester.

4.If plugging of the screen is observed, remove arrester and shake loose particles out of the arrester and clean screen with a wire brush (soak in solvent if necessary). Reinstall arrester on exhaust outlet.

Thread Locking Adhesives

Thread locking adhesives such as “Loctite 242” or “Fel-Pro, Pro-Lock Nut Type” are used on the following fasteners:

•ROPS spring pin housing.

•Hydro pump control arm, linkage bolt, and attachment bolt.

•Hydro park brake cable anchor mounting bolt

•Sheave and clutch retaining bolt in the end of engine crankshaft.

Thread locking adhesives are required for some hardware on engines — see the Engine manual.

Copper-Based Anti-seize

Copper-based anti-seize is used in the following location:

On threads of Blade Bolts. See Check Mower Blades section.

Check Spark Arrester (if equipped)

Service Interval: Every 50 hours

WARNING

Hot exhaust system components may ignite gasoline vapors even after the engine is stopped. Hot particles exhausted during engine operation may ignite flammable materials. Fire may result in personal injury or property damage.

Do Not refuel or run engine unless spark arrester is installed.

1.Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake.

Dielectric Grease

Dielectric grease is used on all blade type electrical connections to prevent corrosion and loss of contact.