| Every 25 hours | Blade Sharpen/Replace | Check mower blades every 25 hrs; sharpen or replace as needed |
| Every 25 hours | Battery Inspection | Check battery every 25 hrs; clean battery every 25 hrs |
| Every 50 hours | Air Filter | Check the air filter every 50 hours and service it every 100 hours. The Apex 52 operator manual defers the engine air cleaner detail to the Kohler 7000 Pro engine manual, which specifies servicing or replacing the precleaner every 25 hours and replacing the element on a schedule that depends on which cleaner is fitted - so check the engine manual for the element interval rather than assuming 100 hours covers it. |
| Every 100 hours | Engine Oil & Filter | Oil: Engine oil type not specified in the Apex 52 operator manual; manual refers to engine manual. Hydraulic service uses 15W-50 synthetic motor oil. | Capacity: Refer to engine manual - Check each use; first 25 hrs, then every 100 hrs thereafter |
| Every 100 hours | Lubrication Points | Lubricate unit every 100 hrs: apply oil to all pivot points and pin connections; lubricate seat tracks with grease through slots under seat plate (no interval explicitly stated) |
| Every 400 hours | Hydraulic Fluid & Filter | 15W-50 synthetic motor oil; change hydraulic oil and filter every 400 hrs, with first service at 75 hrs |