Ariens 915237 Lawn Mower Manual

The Ariens 915237 is a high-performance walk-behind lawn mower designed for residential use. It features a powerful engine, durable steel deck, multiple cutting height adjustments, easy-start system, rear bagging capability, and mulching functionality. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Assembly Instructions 3. Safety Information 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: Steel cutting deck, Briggs & Stratton engine, height adjustment lever, rear collection bag, mulching plug, recoil starter, and ergonomic handle.

Feature	Description
Cutting Width	21-inch steel deck for efficient mowing
Engine	Briggs & Stratton 140cc OHV engine
Starting System	Recoil starter with easy-pull technology
Cutting Options	Rear bagging, side discharge, and mulching
Height Adjustment	Single-lever control for 6 cutting positions (1.5-4 inches)
Drive System	Self-propelled rear-wheel drive (if equipped)
Handle	Foldable for compact storage
Wheels	8-inch rear, 7-inch front wheels
Fuel Tank	0.5-gallon capacity
Weight	Approximately 65 lbs

Assembly Instructions

Unpack and inspect all parts. Assembly requires basic tools.

Attach handle: Insert lower handle into mounting brackets, secure with provided bolts.
Install wheels: Slide wheels onto axles, secure with retaining clips.
Attach grass bag: Hook bag frame onto rear deck brackets.
Install mulching plug: Insert plug into rear discharge opening if mulching.
Add engine oil: Fill with SAE 30 detergent oil (check dipstick).
Add fuel: Use fresh unleaded gasoline (87 octane minimum).

WARNING! Wear gloves during assembly. Ensure all fasteners are tight before operation.

Safety Information

Read all safety instructions before operating.

Clear mowing area of debris, stones, and toys.
Wear sturdy shoes, eye protection, and long pants.
Never operate without proper guards or safety devices.
Do not mow when children or pets are present.
Stop engine before unclogging deck or making adjustments.
Use extreme caution on slopes; mow across slopes, not up/down.
Never leave mower unattended with engine running.

DANGER! Keep hands and feet away from rotating blades. Disconnect spark plug before servicing.

Specifications

Model: Ariens 915237
Cutting Width: 21 inches
Deck Material: 14-gauge steel
Engine: Briggs & Stratton 140cc, 4-cycle OHV
Fuel Type: Unleaded gasoline (87 octane minimum)
Oil Type: SAE 30 detergent (20 oz capacity)
Cutting Heights: 6 positions (1.5, 2, 2.5, 3, 3.5, 4 inches)
Bag Capacity: 2.5 bushels
Warranty: 2-year limited warranty

Controls and Operation

Handle Controls: Throttle lever, drive control (if self-propelled), height adjustment lever, blade control bar.

Starting Procedure:

Check oil and fuel levels.
Push primer bulb 3 times (cold engine).
Set throttle to FAST position.
Pull recoil starter handle firmly.
Engage blade control bar to start cutting.

Stopping: Release blade control bar, move throttle to STOP, wait for blades to stop completely.

Cutting Height Adjustment

Adjust all wheels simultaneously with single lever.

Stop engine and wait for blades to stop.
Pull height adjustment lever toward wheel.
Move lever to desired height setting (1-6).
Release lever to lock in position.
Check that all wheels are at same height.

Tip: For first mow of season, set to highest setting. Never remove more than 1/3 of grass height at once.

Maintenance Schedule

Interval	Task
Before each use	Check oil level, inspect blade, clear deck
Every 25 hours	Change engine oil, clean air filter
Every 50 hours	Replace spark plug, sharpen blade
Every 100 hours	Replace air filter, check drive belt
Season end	Drain fuel, clean thoroughly, lubricate

Blade Sharpening: Remove blade, maintain original cutting angle. Balance blade before reinstalling.

Storage Guidelines

Proper storage extends mower life.

Drain fuel tank or add fuel stabilizer.
Run engine until it stops to clear carburetor.
Change oil and clean air filter.
Remove spark plug, add 1 tablespoon oil to cylinder, pull starter slowly.
Clean underside of deck thoroughly.
Store in dry, covered area.

CAUTION! Never store with fuel in tank for more than 30 days without stabilizer.

Warranty Information

Ariens provides 2-year limited warranty for residential use. Warranty covers defects in materials/workmanship. Not covered: normal wear, improper maintenance, accident, commercial use. Keep receipt as proof of purchase. For warranty service, contact authorized Ariens dealer.

Parts Diagram

Refer to exploded view diagram for part identification and ordering. Common replacement parts:

Blade (Part # 915240)
Air Filter (Part # 915245)
Spark Plug (Part # 915250)
Drive Belt (Part # 915255)
Rear Bag (Part # 915260)

Order parts through authorized dealers or www.ariens.com.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	No fuel, old gas, clogged filter	Add fresh fuel, clean/replace filter, check spark plug
Poor cutting performance	Dull blade, low engine speed	Sharpen/replace blade, set throttle to FAST
Vibration	Unbalanced blade, loose parts	Balance/replace blade, tighten all fasteners
Engine runs rough	Dirty air filter, old fuel	Clean air filter, drain and replace fuel
Self-propelled not working	Drive belt worn, control cable	Inspect/replace drive belt, adjust control cable

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