Troy-Bilt 42052, 42051 Shear Bolts, Auger Drive Belts Adjustment, 15 Nm, Removal, Installation

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Section 5: Maintenance

WARNING

Before inspecting, cleaning or servicing the machine, shut off engine, wait for all moving parts to come to a complete stop, disconnect spark plug wire and move wire away from spark plug.

Failure to follow these instructions can result in serious personal injury or property damage.

 

M

 

Figure 5-5

L

N

AUGER DRIVE BELT AND WHEEL DRIVE BELT REPLACEMENT

NOTE: The auger drive belt (there is one auger drive belt on the 9.5HP model and two auger drive belts on the 11HP model) must be removed before removing the wheel drive belt. The illustration (Figure 5-

6)shows two auger drive belts (AD), ig- nore the second belt if the unit is not so equipped.

AC

 

 

BA

 

BB

 

AE

 

AH

AG

 

AF

AD

 

Figure 5-6

AO

6.Remove wheel drive belt (AG, Figure 5-6) from lower drive pulley (AH). Squeeze wheel drive control lever against handlebar (X, Figure 5-1) to in- crease gap between lower pulleys as needed.

7.Remove the wheel drive belt from unit.

8.If the auger drive belt(s) have been re- placed, then perform the Auger Drive Belt Adjustment as described in this section.

9.Reinstall the belt cover.

SHEAR BOLTS

CAUTION

Using anything but original equipment shear bolts could result in damage to the unit. Use factory-specified auger shaft shear bolts when replacing shear bolts.

Special shear bolts (L, Figure 5-5) secure the augers to the auger shaft and are de- signed to break (shear) if the auger jams. This prevents damage to other, more vital parts. Inspect shear bolts before each use and replace them if they are worn or bro- ken. Torque shear bolts to 11 ft-lbs

(15 Nm).

Removal

1.With the engine stopped and the spark plug wire disconnected, remove the screws and washers (AB, Figure 5-1) and remove the belt cover from the unit.

2.Remove the two screws, flat washers and lockwashers securing belt guide (AC, Figure 5-6) to the engine.

Remove the belt guide.

3.Loosen jam nut (BA, Figure 5-6) and remove bolt (BB).

4.Release tension on the idler (AF, Figure 5-6). Remove the auger drive belt(s) (AD) from the auger drive pul- ley (AE).

5.Remove the auger drive belt(s) from the lower drive pulley (AO, Figure 5-9) and remove belt(s) from unit. NOTE: If you are not replacing the wheel drive belt (AG), then proceed to Installation.

Installation

1.Position wheel drive belt (AG, Figure

5-6) into lower drive pulley (AH) clos- est to the engine.

2.Place the belt into the groove closest to the engine of the engine pulley (AE).

3.Position auger drive belt(s) (AD, Figure 5-6) down through gap. Position the belt(s) into the lower drive pulley (AO).

4.Position the auger drive belt(s) (AD, Figure 5-6) into engine pulley (AE).

5.Position belt guide (AC, Figure 5-6) back on engine and secure with two screws and washers removed earlier.

6.Reinstall bolt (BB, Figure 5-6), leaving 1/16" (1.5mm) clearance between un- derside of bolt head and front edge of pulley (AE). Tighten jam nut (BA) against engine crankcase.

7.If the wheel drive belt has been re- placed, then perform the wheel drive disc adjustment (see Wheel Drive Disc Adjustment ).

AUGER DRIVE BELT(S)

ADJUSTMENT

Due to wear, the auger drive belt(s) may begin to slip when the auger drive lever is engaged. To adjust the auger drive belt(s):

1.Perform the brake arm adjustment as described in this section. Leave the spark plug wire disconnected while per- forming this adjustment.

2.If assembling a new unit, raise the wheel drive control lever (AP, Figure

5-7) and the auger drive control lever (AL).

3.Pull the auger drive control arm (AJ, Figure 5-8) down completely.

4.Measure and note distance between coiled ends of spring (AK, Figure 5-8).

5.Squeeze auger drive control lever (AL, Figure 5-7) against handlebar. Measure between the coiled ends of the stretched spring (AK, Figure 5-8), mak- ing sure you measure between the same coils used in step 4.

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Contents Snow Thrower See Back Cover for Customer Service Information Preparation SafetyTraining Keep the area of operation clearSafety OperationMaintenance and Storage Safety DecalsUnpack Unit AssemblyInspect Unit DescriptionAssembly Install HandlebarsInstall Discharge Chute Attach Chute Control Rod Attach Wheel Drive Control RodAttach Gear Shift Control Rod Assembly Check Tire Pressure Connect Wiring for Handlebar Warmers and LightAdd Motor Oil to Crankcase Check Auger Gear Case Oil LevelFeatures and Controls Starting the Engine PRE-OPERATION ChecklistOperation Gasoline is Highly Flammable and ITS Vapors are ExplosiveEmergency stopping OperationStopping Normal non-emergency stoppingTransporting the Unit Auger Drive EngagementShifting Gears Snow Throwing TipsSnow Throwing Patterns Wheel Drive Disc Adjustment MaintenanceEngine Maintenance LubricationMaintenance Shear Bolts Auger Drive Belts AdjustmentInstallation 15 NmDrive Disc Clearance Adjustment Brake ARM AdjustmentSlip Differential Adjustment OFF-SEASON StorageTroubleshooting Trouble Possible Problem SolutionEngage auger drive Auger spins with drive leverAuger drive control lever does not DisengagedRequired Maintenance Schedule ScheduleSpecifications Specifications, Optional Kits and AccessoriesSPECIFICATIONS/OPTIONAL Kits and Accessories Optional Kits and AccessoriesParts List Ref. # Description QtyDescription Qty Drawing no Parts List Ref. # Description104 108 203 205 204 112 111 113 110 1100045 Drawing no 1185403 Engine Service and Repair Warranty ServiceReplacement Parts Owner Registration Card

42051, 42052 specifications

Troy-Bilt has long been a trusted name in outdoor power equipment, and the models 42051 and 42052 continue this tradition with their robust features and reliable performance. Designed for residential lawn care and landscaping tasks, these models are primarily known for their powerful engine, ease of use, and innovative technology that cater to both novice and experienced users.

At the heart of the Troy-Bilt 42051 and 42052 is a reliable 420cc engine that delivers exceptional power for tackling various yard tasks, whether it's mowing, mulching, or bagging. The engine’s design emphasizes efficiency and ease of starting, ensuring that users can get right to work without any hassle. This engine has been engineered to minimize vibrations, which adds to the overall comfort during prolonged use.

One standout feature of both models is their adjustable cutting height. With multiple positions, users can easily customize the cutting height to suit their lawn's needs, giving them the versatility to achieve the perfect cut no matter the grass type or terrain.

Equipped with a heavy-duty steel deck, the 42051 and 42052 are designed for durability and longevity. This robust construction not only withstands rough conditions and impacts but also facilitates a smooth cutting experience, ensuring consistent results with each pass.

Another notable technology found in these mowers is the TriAction cutting system. This innovative design combines a specially designed blade with a rake that lifts grass for an even, clean cut. The system enhances bagging capability by ensuring that more clippings are efficiently collected, keeping lawns tidy and reducing the need for additional clean-up.

Both models also feature a rear bagging attachment, making it easier to collect clippings and debris as you mow. This capability is particularly advantageous for those looking to maintain a neat and well-kept lawn without the mess that often accompanies traditional mowing.

Moreover, the user-friendly controls make these mowers easy to operate. With intuitive levers and simple starting mechanisms, even those who are new to lawn care can gain confidence quickly.

Overall, the Troy-Bilt 42051 and 42052 embody the brand’s commitment to quality, performance, and user satisfaction, making them excellent choices for homeowners seeking a reliable solution for their lawn care needs. Whether tackling vast yards or smaller spaces, these mowers demonstrate power, innovation, and ease of use, fulfilling the diverse requirements of modern landscaping.