Drive Disc Clearance Adjustment | Troy-Bilt 42051, 42052 guide

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.

The spring length should now measure 9/16" – 11/16" (14–17mm) longer than the measurement taken in Step 4. If it does not, loosen the jam nut (AM, Figure 5-8) and turn the adjuster (AN) to increase or decrease the length of the spring. Hold the adjuster and tighten the jam nut (AM) when the correct spring length is ob- tained. Re-check the measurements and adjust if needed.

NOTE: 1-1/4 turns of the adjuster equals 1/16" (1.5mm) of spring extension.

AL
AU	AP
AB
Figure 5-7

GEAR SHIFT ROD ADJUSTMENT

1.With the engine stopped and the spark plug wire disconnected, move the gear shift lever (AU, Figure 5-7) to position No. 5. Remove the hairpin cotter and the flat washer from the pivot block (N, Figure 5-10). Disconnect the pivot block (N) from the gear shift lever plate (AV, Figure 5-10).

2.Pull the gear shift control rod (AA, Figure 5-8) down completely.

3.While holding the gear shift control rod (AA, Figure 5-8) down, loosen the jam nut (ZZ, Figure 5-10) and thread the pivot block (N) up or down as needed so it fits into the hole in the gear shift lever plate (AV, Figure 5-10).

4.Reinstall the pivot block (N, Figure 5- 10) into the gear shift control lever hole and secure with the washer and hairpin cotter. Secure the jam nut (ZZ, Figure 5-10) against the pivot block (N).

5.Move the gear shift control lever (AU, Figure 5-7) through the full range of travel. Check for binding. Refer to the Drive Disc Clearance Adjustment instructions, if needed.

DRIVE DISC CLEARANCE

ADJUSTMENT

If the gear shift rod lever does not move freely through all the gear positions, ad- just clearance (AY, Figure 5-9) as follows:

1.With the engine stopped and the spark plug wire disconnected, loosen jam nut (AW, Figure 5-8). Rotate adjusting screw (AX) until rubber drive wheel (T, Figure 5-9) contacts metal drive disc

(U).

2.Turn the rubber drive wheel (T, Figure 5-9) and the metal drive disc (U) to find the point of minimum clearance (AY). (This is where both the drive wheel [T] and metal disc [U] are touching.)

3.Adjust the discs at the point of mini- mum clearance. Loosen adjusting screw (AX, Figure 5-8) 1/2 turn. Secure the adjusting screw (AX) in place, while tightening the jam nut (AW).

4.Check the clearance (AY, Figure 5-9) by moving gear shift lever (AU, Figure 5-7) through all positions. Repeat Step 3 as necessary.

AX	AA

Figure 5-9

BRAKE ARM ADJUSTMENT

The brake arm adjustment is set at the factory to 1/16 - 1/8" for proper belt/brake clearance. Due to wear, this may need adjustment.

Figure 5-8	19

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.

Troy-Bilt 42051, 42052 owner manual Drive Disc Clearance Adjustment, Brake ARM Adjustment

Models: 42051 42052