Ariens 836008 Lawn Mower Manual

The Ariens 836008 is a 21-inch self-propelled gas lawn mower featuring a 159cc Briggs & Stratton engine, 3-in-1 mulching/bagging/side-discharge capability, 6-position single-lever height adjustment (1.25-3.75 inches), 2-year limited warranty, and durable steel deck. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Assembly Instructions 3. Safety Precautions 4. Specifications 5. Controls and Operation 6. Cutting Height Adjustment 7. Maintenance Schedule 8. Storage Guidelines 9. Warranty Information 10. Parts Diagram 11. Troubleshooting

Features at a Glance

Key components: 159cc Briggs & Stratton engine, 21-inch steel cutting deck, rear bagger, mulching plug, side discharge chute, self-propelled drive system, single-lever height adjustment.

Feature	Description
Engine	159cc Briggs & Stratton 675 Series, OHV
Cutting Width	21 inches
Cutting Height	6 positions, 1.25-3.75 inches
Drive System	Self-propelled, front-wheel drive
Deck Material	Durable steel construction
Capabilities	3-in-1: Mulch, Bag, Side Discharge
Starter	Recoil pull-start
Fuel Tank	0.95 gallons
Warranty	2-year limited
Weight	Approx. 75 lbs

Assembly Instructions

Unpack and inspect all parts. Assembly requires basic tools (included).

Attach handle: Align lower handle with deck brackets, secure with provided bolts and wrench.
Install upper handle: Connect to lower handle, tighten knobs.
Attach grass bag: Slide bag frame onto rear deck hooks; ensure secure latch.
Install mulching plug (if using): Insert into rear discharge opening.
Add oil and gasoline: Use SAE 30 detergent oil (20 oz) and unleaded gasoline (87 octane minimum).

WARNING! Do not add fuel indoors or near ignition sources. Ensure all fasteners are tight before operation.

Safety Precautions

Read all instructions before operating. Always wear appropriate safety gear.

Clear mowing area of debris, stones, and toys.
Never operate without proper guards or shields in place.
Do not mow wet grass or in poor visibility.
Keep hands and feet away from rotating blades.
Stop engine and disconnect spark plug before maintenance.
Do not allow children to operate mower.

CAUTION! Gasoline is flammable; store in approved container away from heat.

Specifications

Model: Ariens 836008
Engine: Briggs & Stratton 675 Series, 159cc, OHV
Cutting Width: 21 inches
Cutting Height Range: 1.25 - 3.75 inches (6 positions)
Drive: Self-propelled, front-wheel
Deck: 21-inch steel, 3-in-1
Fuel Capacity: 0.95 gallons
Oil Capacity: 20 oz (SAE 30 detergent)
Warranty: 2-year limited
Weight: 75 lbs (approx.)

Controls and Operation

Handle Controls: Drive control lever, height adjustment lever, engine throttle, recoil starter.

Starting: 1. Check oil and fuel levels. 2. Push primer bulb 3 times (cold engine). 3. Set throttle to FAST. 4. Pull recoil starter firmly.

Self-Propelled Operation: Squeeze drive control lever against handle to engage wheels; release to stop drive.

Stopping: Release drive lever, move throttle to STOP, wait for blades to stop completely.

Cutting Height Adjustment

Single-lever adjustment for all four wheels simultaneously.

Stop engine and ensure blades are not rotating.
Pull height adjustment lever outward and move to desired position (1-6).
Release lever to lock into position.
Verify all wheels are at same height.

Tip: For first mow of season, set to highest setting; gradually lower for subsequent mows.

Maintenance Schedule

Regular maintenance ensures optimal performance and longevity.

Interval	Task
Before each use	Check oil level, inspect for damage, clear deck of debris
Every 25 hours	Change engine oil, check air filter, inspect spark plug
Every season	Sharpen or replace blade, clean underside of deck
As needed	Replace air filter, check drive belt tension
Storage	Drain fuel or add stabilizer, clean thoroughly

WARNING! Always disconnect spark plug before performing any maintenance.

Storage Guidelines

Proper storage prevents corrosion and starting issues.

Clean mower thoroughly, removing grass clippings and debris.
Drain fuel tank or add fuel stabilizer following manufacturer instructions.
Run engine for 2 minutes to circulate stabilized fuel.
Change oil if near service interval.
Store in dry, covered area away from moisture.

CAUTION! Never store mower with gasoline in tank indoors or near open flame.

Warranty Information

Ariens 836008 includes a 2-year limited warranty covering defects in materials and workmanship. Warranty does not cover normal wear, misuse, improper maintenance, or commercial use. Proof of purchase required. For warranty service, contact authorized Ariens dealer or call 1-800-678-5443. Register product online at www.ariens.com for faster service.

Parts Diagram

Refer to exploded-view diagram for part identification and ordering. Common replacement parts: Blade (part # 501061), Air Filter (part # 501062), Spark Plug (RC12YC), Drive Belt (part # 501063). Always use genuine Ariens parts for optimal performance and warranty compliance.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	No fuel, old gasoline, clogged air filter	Check fuel level; use fresh gasoline; clean/replace air filter.
Poor cutting performance	Dull blade, low engine speed, wet grass	Sharpen/replace blade; set throttle to FAST; mow when grass is dry.
Self-propelled not working	Drive belt loose or worn, control cable adjustment	Check belt tension and condition; adjust drive control cable.
Excessive vibration	Damaged or unbalanced blade, loose fasteners	Stop engine immediately; inspect blade for damage; tighten all bolts.
Engine runs rough or stalls	Dirty spark plug, contaminated fuel	Clean or replace spark plug; drain and replace with fresh fuel.

Service: For technical support, contact Ariens at 1-800-678-5443 or visit www.ariens.com.