John Deere S160 24-HP Lawn Tractor: How to Use and Maintain

Start Smart with the John Deere S160

We’ll show how our 24 HP John Deere S160 combines power, comfort, and reliability, and guide us through safe operation, efficient mowing, routine maintenance, and troubleshooting to keep the tractor performing like new season after season, with confidence and ease.

What We Need Before We Begin

We’ll need:

Wrench set, grease gun, torque wrench
Safety glasses, gloves, hearing protection
Fuel and engine oil
Clear, level work area
Operator’s manual; basic mower familiarity

1

Familiarize Yourself with Controls and Safety Features

Is this the most user-friendly lawn tractor we’ll ever operate? Let’s find out.

Walk around the S160 and identify the main controls before you start.

Locate these controls and learn what each does:

Ignition key — turn to start; note accessory/run positions.
Choke/throttle (if applicable) — set choke for a cold start; advance throttle for mowing speed.
Hydrostatic pedal or gear controls — practice forward/reverse pedal operation or gear lever movement.
Parking brake — engage before dismounting.
PTO switch — engage/disengage mower blades.
Deck height lever — set cutting height; test one notch at a time.

Check critical safety systems and fluids.
Test the neutral safety switch and seat interlock by trying to start with the PTO engaged or with the seat empty; the engine should not crank in unsafe conditions. Inspect the ROPS and seat switch for secure mounting. Check engine oil and hydraulic fluid levels, confirm fuel is fresh gasoline and the cap seals, inspect battery terminals for corrosion, and verify tire inflation to the placard PSI.

Adjust the seat and mirrors for clear sightlines. Clear the mowing area of rocks, toys, and branches. Wear eye and ear protection, sturdy shoes, and avoid loose clothing to prevent entanglement.


2

Perform Pre-Start Safety Checks and Fueling

Why a two-minute routine now saves hours of headache and repair later.

Before we turn the key, run this quick, consistent pre-start checklist to avoid problems and protect components.

Confirm fuel level and use fresh unleaded gasoline; avoid ethanol blends if the manual warns. Example: refill from fresh fuel and add stabilizer if gas sat over winter.
Check oil level on the dipstick—park on level ground, run briefly then shut off, wait a few minutes, wipe and reinsert the dipstick; add the specified SAE grade if low.
Inspect the air filter and replace or clean it if it’s dirty or clogged.
Tighten battery connections and clean corrosion; secure the battery hold-down.
Walk the tires to confirm proper pressure and scan for cuts or bulges.
Inspect belts, pulleys, and blade bolts for wear or looseness; sharpen or replace blades if dull and torque bolts to spec.
Clear the mower deck of built-up grass and debris; ensure the discharge chute or bagger is properly attached.

We verify that the parking brake engages and that PTO (blade engagement) control is off before starting. These quick steps reduce restart problems and extend component life.


3

Start and Operate the Tractor Smoothly

Smooth, confident starts — even if the tractor’s been idle all winter.

Sit in the operator seat and confirm the parking brake is set; we keep hands free of controls while preparing to start.
Set the PTO to off and place the throttle/choke in the manual’s recommended start position.
Ensure the key is turned to preheat/glow (if required) and then to start; let the engine catch and run.

Let the engine warm at low throttle for 30–60 seconds; we listen for unusual noises and check gauges for normal oil pressure and temperature.
Check that the headlights, brake, and PTO indicators behave normally before moving.

Use the hydrostatic drive slowly: press the forward pedal/lever gently to accelerate and release it smoothly to slow.
Press the reverse pedal only after coming to a complete stop; we pause, glance behind, then reverse with caution.
Control ground speed by keeping lower throttle for mowing and higher throttle for transport; for example, mow at a steady, comfortable pace that keeps the blades cutting cleanly.

Steer gradually and reduce speed for tight turns; approach slopes by mowing up-and-down where practical, avoid sudden turns, and never leave the seat with the engine running or PTO engaged.


4

Set and Use the Mower Deck and Attachments

Get a crisp, even cut — and swap accessories without breaking a sweat.

Select deck height based on grass type and conditions; choose lower for fine fescue and higher for Bermuda or tall, wet grass. Use the height adjustment lever and measure both sides at the blade tips to confirm evenness — for example, set to 3″ on both sides to avoid scalping.

Engage the PTO smoothly by bringing engine to low throttle, then switch PTO on and increase RPM slightly; test blade engagement briefly at low throttle and listen for balanced rotation before mowing.

Mow at about one-third of the remaining blade height per pass to avoid scalping; overlap passes 2–3 inches for consistent lines. Use straight lines for speed and neat appearance; use staggered or offset passes to manage heavy clippings or uneven turf.

Attach baggers, mulch kits, or carts by following pins and connector alignment, secure safety chains, then torque fasteners to spec.

Check torque points: blade nuts, spindle nuts, deck bracket bolts, and hitch pins.

Lower RPM and disengage blades when crossing driveways, gravel, or obstacles to prevent damage. Transport the deck raised, latch or block it securely for maintenance, and always chock the tractor before working under the deck.


5

Perform Routine Maintenance to Extend Life

Ignore this and the tractor will remind us painfully — preventive care keeps resale value high.

Change engine oil and filter after the first 5 hours (break-in), then every 50 hours or annually; for example, mowing weekly usually hits ~50 hours twice a season.

Change oil & filter: after 5 hours, then every 50 hours/annually
Replace air filter: as needed after dusty use
Check/replace spark plug: annually or if hard starting
Inspect belts: replace if cracked or frayed
Sharpen/replace blades: seasonally and balance to prevent vibration
Grease fittings: per manual intervals
Check battery: top off fluid, charge, or remove for winter
Clean cooling fins: remove debris to prevent overheating

Sharpen blades in early spring and again mid-season; for example, remove nicks and balance on a blade balancer or a nail in a wall. Inspect belts during each oil change and replace at the first sign of glazing or fraying. Keep a maintenance log with dates and engine hours, and use OEM parts when possible. Prepare the tractor for winter by stabilizing fuel, removing and storing the battery indoors, and protecting the deck and exposed metal with a cover.


6

Troubleshoot Common Problems Quickly

Dead battery? Clogged deck? We can fix most nuisances without a mechanic — here’s how.

Start with simple, safe checks and escalate only when needed. We list fast actions you can do in your driveway to isolate common faults.

Check engine won’t start: Confirm fuel valve on and fresh gas; check battery voltage (about 12.6 V full). Remove and inspect spark plug for fouling; replace if oily or damaged.

Inspect crank-but-no-start: Verify fuel delivery (fuel lines, primer, carburetor) and spark. We often find stale fuel—drain and add fresh gas with stabilizer.

Replace rough-running symptoms: Clean or swap the air filter, replace the spark plug, and drain/replace old fuel. For example, a plugged air filter often causes sputtering.

Sharpen/inspect blades for poor cutting or vibration: Remove blades, sharpen and balance them; check spindles and mounting for bends.

Clean cooling fins and check oil for overheating: Clear debris from mower housing and ensure oil is at the correct level.

Verify hydrostatic drive and belts: Check transaxle oil level and inspect belts for slip or glazing.

Test electrical faults: Check fuses and tighten connectors before replacing components.

Document symptoms and recent service, and call a dealer or certified technician for internal engine or transmission repairs.


Keep Mowing Confidently

We’ll keep our S160 reliable and efficient with routine checks, safe operation, and simple maintenance; try these steps, test improvements on your next mow, and share results with us so we can learn — start today and enjoy easier lawns.

1 Comment
  1. Not a mower guy usually but this guide was super approachable. The troubleshooting part saved me — that odd vibration turned out to be a bent blade.
    Pro tip: keep a spare blade on hand. You’ll thank me later 😂

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