_HROTTLE

i _CABLE

GOVERNOR

CONTROL

J

HOLE"A"

FIGURE 50

FIGURE 51

 

 

R.H. SIDE

OF TRACTOR

 

 

 

 

ENGINE

 

 

 

 

PULLEY

 

IDLER

 

 

 

 

BRACKET

 

 

1-1/16" i

....

t

NUT "A"

/. _?_

CLUTCH

 

 

I

TAKE. UP

IDLER "

,FIGURE 5:2

5o CARBURETOR ADJUSTMENT

Never attempt to change maximum engine speed. This is preset at the factory and should only be changed by a quali- fied service technician who has the necessary equipment.

a.Move Throttle Control (on the dashboard) to I_SLOW'* position. Remove'All:Cleaner (Fig. 36).

b.Check that two holes "A" line up. If not, loosen Clamp

Screw and adjust Throttle Cable until the two holes do line up (Fig. 50 - Inset),

r

REFER TO "STARTING THE ENGINE",

PAG E 6.

co Start Engine and allow to warm for five minutes. Make final adjustments with engine running.

d_ High Speed is fixed, no adjustment is possible,,

e, Adjust Carburetor Mixture Screw to suggested initial setting,

--Turn Mixture Screw clockwise (/_) closing finger tight ONLY, and then turn counterclockwise (f'_)

1- t/2 turns (Fig. 51).. CAUTION: VALVE MAY BE DAMAGED IF TURNED IN TOO FAR.

f.Hold Governor Control against Throttle Stop. Turn Mixture Screw clockwise (('_) until engine begins to

run rough (Fig. 51).

g.Turn Mixture Screw counterclockwise (_) until engine begins to run rough,. Set Mixture at smoothest idle between the two points attained in steps f and go

h.Release Governor Control. Engine will speed up for governed idle. Replace Air Cteanero

6o V-BELT ADJUSTMENT

A new V-Bett may stretch after the first few hours of opera- tion resulting in loss of ground speed_

a. To tighten Belt, remove (4) Hex Washer Head Tapping Screws from Shift Cover Plate (Fig. 48) located on top of tractor frame• Remove the Cover Plate.

b. Place Parking• Brake Lever _in It ENGAG E D li pos=tlon,,,

!1

Refer to Stopping Your Tractor page 7,,

t*lr. li"

,

.

c. Loosen Nut A

located on outside of

R.H. Chassis

Frame (Fig. 56), slide Take-Up Idler down approximate- ly 1/2" and tighten Nut "A",

d. Disengage Parking Brake.

e,, Check position of Clutch Idler Bracket (Fig. 52).

f+ Repeat steps b thru e untd a 1 - 1/t6 dmenson is obtained between Idler Tab and Frame as shown in Fig

52.

g. Tighten Nut "A" securely.

h, Reinstall Shift Cover Plate and (4) Screws removed in

step a,

- 22-

Page 21 Page 23
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Image 22
Sears 917.25591 manual TAKE. UP Idler, Refer to Starting the Engine
Page 21 Page 23

917.25591 specifications

The Sears 917.25591 is a robust lawn tractor that has earned a solid reputation among gardening enthusiasts and homeowners alike. Known for its reliability and impressive features, this model is ideal for tackling various landscaping tasks, from mowing to hauling. One of the standout characteristics of the 917.25591 is its powerful engine. Typically equipped with a Briggs & Stratton engine, this lawn tractor delivers the performance needed to handle tough grass and uneven terrain with ease. The engine provides a good balance between power and fuel efficiency, making it a practical choice for regular lawn maintenance.

Another key feature of the Sears 917.25591 is its cutting deck. With a generous width, the deck allows for efficient mowing, reducing the number of passes needed to maintain a well-groomed lawn. The adjustable cutting height settings provide versatility, enabling users to customize their mowing experience based on grass type and seasonality.

User comfort is also paramount in the design of the 917.25591. The adjustable seat ensures that operators can find their ideal position, making long hours of mowing more manageable. The ergonomic controls are intuitively placed, allowing for easy operation while minimizing fatigue. Additionally, the tractor's tight turning radius enables maneuverability around flower beds and tight spaces, ensuring that every nook of your landscape is tended to.

One of the advanced technologies integrated into the Sears 917.25591 is its automatic transmission. This feature eliminates the need for manual gear shifting, allowing for a smoother driving experience. The transmission system seamlessly adapts to changing terrains and mowing conditions, ensuring optimal performance at all times.

The sturdy construction of this lawn tractor also means it is built to last. Made from high-quality materials, it withstands the rigors of frequent use, making it a worthwhile investment for anyone serious about lawn care. Furthermore, available attachments such as baggers and snow plows make the Sears 917.25591 a versatile machine that extends its functionality beyond just mowing.

In summary, the Sears 917.25591 is a well-rounded lawn tractor that combines a powerful engine, user-friendly features, advanced technologies, and durable construction to meet the needs of any homeowner or gardener. Its reliable performance and versatility have made it a popular choice for those looking to maintain a beautiful outdoor space.
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