OPERATION

WARM WEATHER STARTING (50° F and above)

When engine starts, slowly push choke control in until the engine begins to run smoothly. If the engine starts to run roughly, pull the choke control out slightly for a few seconds and then continue to push the control in slowly.

The attachments and ground drive can now be used. If the engine does not accept the load, restart the engine and allow it to warm up for one minute using the choke as described above.

COLD WEATHER STARTING (50° F and below)

When engine starts, slowly push choke control in until the engine begins to run smoothly. Continue to push the choke control in small steps allowing the engine to accept small changes in speed and load, until the choke control is fully in. If the engine starts to run roughly, pull the choke control out slightly for a few seconds and then continue to push the control in slowly. This may require an engine warm-up period from several seconds to several minutes, depending on the temperature.

AUTOMATIC TRANSMISSION WARM UP

Before driving the unit in cold weather, the transmission should be warmed up as follows:

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.

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 tractor moves approximately five (5) feet return the motion 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. 10).

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.

 

FIG. 10

IMPORTANT: SHOULD YOUR TRANSMISSION REQUIRE

 

 

 

REMOVAL FOR SERVICE OR REPLACEMENT, IT SHOULD

 

• If grass is extremely tall, it should be mowed twice to

BE PURGED AFTER REINSTALLATION BEFORE OPERATING

 

THE TRACTOR.

 

reduce load and possible fire hazard from dried clip-

• Place tractor safely on level surface with engine off and

 

pings. Make first cut relatively high; the second to the

parking brake set.

 

desired height.

• Disengage transmission by placing freewheel control

 

• Do not mow grass when it is wet. Wet grass will plug

in freewheeling position (See “TO TRANSPORT” in this

 

mower and leave undesirable clumps. Allow grass to

section of manual).

 

dry before mowing.

• Sitting in the tractor seat, start engine. After the engine

 

Always operate engine at full throttle when mow-

is running, move throttle control to slow position. With

 

ing to assure better mowing performance and proper

motion control lever in neutral (N) position, slowly dis-

 

discharge of material. Regulate ground speed by se-

engage clutch/brake pedal.

 

lecting a low enough gear to give the mower cutting

• Move motion control lever to full forward position and

 

performance as well as the quality of cut desired.

 

• When operating attachments, select a ground speed

hold for five (5) seconds. Move lever to full reverse

 

position and hold for five (5) seconds. Repeat this

 

that will suit the terrain and give best performance of

procedure three (3) times.

14

the attachment being used.

 

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Poulan DB24H42YT manual Mowing Tips, Purge Transmission, Automatic Transmission Warm UP