OPERATION

•Be sure the tractor is on level ground.

•Place the motion control lever in neutral. Release the parking brake and let the clutch/brake slowly return to operating position.

•Allow one minute for transmission to warm up.This can be done during the engine warm up period.

•The attachments can be used during the engine warm- up period after the transmission has been warmed up and may require the choke control be pulled out slightly.

NOTE: If at a high altitude (above 3000 feet) or in cold temperatures (below 32 F) the carburetor fuel mixture may need to be adjusted for best engine performance. See “TO ADJUST CARBURETOR” in the Service and Adjustments section of this manual.

PURGE TRANSMISSION

CAUTION: Never engage or disengage freewheel lever while the engine is run-

ning.

To ensure proper operation and performance, it is recom- mended that the transmission be purged before operating tractor for the first time. This procedure will remove any trapped air inside the transmission which may have de- veloped during shipping of your tractor.

IMPORTANT: SHOULD YOUR TRANSMISSION REQUIRE REMOVAL FOR SERVICE OR REPLACEMENT, IT SHOULD BE PURGED AFTER REINSTALLATION BEFORE OPERATING THE TRACTOR.

•Place tractor safely on level surface with engine off and parking brake set.

•Disengage transmission by placing freewheel control in freewheeling position (See “TO TRANSPORT” in this section of manual).

•Sitting in the tractor seat, start engine. After the engine is running, move throttle control to slow position. With motion control lever in neutral (N) position, slowly dis- engage clutch/brake pedal.

•Move motion control lever to full forward position and hold for five (5) seconds. Move lever to full reverse position and hold for five (5) seconds. Repeat this procedure three (3) times.

NOTE: During this procedure there will be no movement of drive wheels. The air is being removed from hydraulic drive system.

•Move motion control lever to neutral (N) position. Shut- off engine and set parking brake.

•Engage transmission by placing freewheel control in engaged position (See “TO TRANSPORT” in this sec- tion of manual).

•Sitting in the tractor seat, start engine. After the engine is running, move throttle control to half (1/2) speed. With motion control lever in neutral (N) position, slowly disengage clutch/brake pedal.

•Slowly move motion control lever forward, after the tractor moves approximately five (5) feet, slowly move motion control lever to reverse position. After the trac- tor moves approximately five (5) feet return the mo- tion control lever to the neutral (N) position. Repeat this procedure with the motion control lever three (3) times.

•Your transmission is now purged and now ready for normal operation.

MOWING TIPS

•Mower should be properly leveled for best mowing per- formance. See “TO LEVEL MOWER HOUSING” in the Service and Adjustments section of this manual.

•The left hand side of mower should be used for trim- ming.

•Drive so that clippings are discharged onto the area that has been cut. Have the cut area to the right of the machine. This will result in a more even distribution of clippings and more uniform cutting.

•When mowing large areas, start by turning to the right so that clippings will discharge away from shrubs, fences, driveways, etc. After one or two rounds, mow in the opposite direction making left hand turns until finished (See Fig. 8).

FIG. 8

•If grass is extremely tall, it should be mowed twice to reduce load and possible fire hazard from dried clip- pings. Make first cut relatively high; the second to the desired height.

•Do not mow grass when it is wet. Wet grass will plug mower and leave undesirable clumps. Allow grass to dry before mowing.

•Always operate engine at full throttle when mow- ing to assure better mowing performance and proper discharge of material. Regulate ground speed by se- lecting a low enough gear to give the mower cutting performance as well as the quality of cut desired.

•When operating attachments, select a ground speed that will suit the terrain and give best performance of the attachment being used.

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Poulan HD21H42 manual Mowing Tips, Purge Transmission
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HD21H42 specifications

The Poulan HD21H42 lawn tractor is a powerful and versatile lawn care machine, designed to meet the needs of homeowners with medium to large-sized lawns. This tractor is equipped with a robust 21 horsepower Briggs & Stratton engine, providing the ideal balance between power and efficiency. Its reliable engine ensures smooth operation while delivering ample torque for tackling various terrains and grass conditions.

One of the standout features of the HD21H42 is its 42-inch cutting deck, which allows for efficient mowing of larger areas. The deck is designed with a durable steel construction, ensuring longevity and resistance to wear and tear. The cutting height is adjustable, offering a range of settings that cater to different grass types and seasonal growth patterns. This adaptability is crucial for achieving a perfectly manicured lawn.

The Poulan HD21H42 also incorporates an advanced hydrostatic transmission system. This technology allows for an effortless driving experience, offering infinite speed control without the need for shifting gears. Users can easily maneuver around obstacles and navigate tight spaces with confidence, significantly enhancing the tractor's usability.

Comfort is another key characteristic of the Poulan HD21H42. The tractor features an ergonomic seat that provides support during long mowing sessions, along with a high backrest for added comfort. The straightforward control panel simplifies operation, enabling users to focus on their mowing tasks without confusion. Additionally, the tractor's tight turning radius helps in making sharp turns, reducing the need for manual adjustments.

Maintenance is straightforward with the HD21H42, as its removable cutting deck makes it easy to access and clean. Regular maintenance routines contribute to prolonging the lifespan of the machine and ensuring consistent performance over time.

Moreover, the Poulan HD21H42 offers enhanced versatility with optional attachments such as mulching kits, baggers, and snow plows. This allows homeowners to extend the utility of their lawn tractor throughout different seasons, adapting it to varied tasks beyond just mowing.

In conclusion, the Poulan HD21H42 lawn tractor combines power, ease of use, and adaptability, making it an excellent choice for homeowners seeking a reliable lawn maintenance solution. Its advanced features and thoughtful design ensure that mowing the lawn is not only an obligation but a satisfying and efficient task.
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