Husqvarna LTH1842 TWIN, Owner'S Manual

20

SERVICE AND ADJUSTMENTS

02966

A

A

02548

B

B

NOTE:

  Each full turn of the adjustment nut will change 

mower height about 1/8".
• 

Recheck measurements, adjust if necessary until front 

tip of blade is 1/8" to 1/2" lower than the rear tip.

• 

Hold adjustment nut in position with wrench and tighten 

jam nut securely against adjustment nut.

FRONT-TO-BACK ADJUSTMENT (See Figs. 24 and 25)

IMPORTANT:

  Deck must be level side-to-side.

To obtain the best cutting re sults, the mower blades should 

be adjusted so the front tip is 1/8" to 1/2" lower than the 

rear tip when the mower is in its highest position.

CAUTION:

 Blades are sharp. Protect your 

hands with gloves and/or wrap blade with 

heavy cloth.

•  Raise mower to highest position.
• 

Position any blade so the tip is pointing straight forward. 

Measure distance (B) to the ground at front and rear 

tip of the blade.

•  If front tip of blade is not 1/8" to 1/2" lower than the 

rear tip, go to the front of tractor.

•  With an 11/16" or adjustable wrench, loosen jam nut 

A several turns to clear adjustment nut B.

• 

With a 3/4" or adjustable wrench, turn front link adjust-

ment nut (B) clockwise (tighten) to raise the front of 

mower, or, counterclockwise (loosen) to lower the front 

mower.

FIG. 23

FIG. 24

B

02950

Tighten adjust nut

B

 to raise mower

Loosen adjust nut

B

 to lower mower

Loosen jam nut 

A

 first

A

FIG. 25

TO REPLACE MOWER DRIVE BELT    

(See Fig. 26)

MOWER DRIVE BELT REMOVAL

•  Park tractor on a level surface. En gage parking 

brake.

•  Lower attachment lift lever to its lowest position.
•  Remove any dirt or grass clippings which may have 

accumulated around mandrels and entire upper deck 

surface.

• 

Remove belt from electric clutch pulley (M), both mandrel 

pulleys (R) and all idler pulleys (S).

MOWER DRIVE BELT INSTALLATION 

•  Install belt around all mandrel pulleys (R) and around 

idler pulleys (S) as shown.

•  Install belt onto electric clutch pulley (M).

IMPORTANT: 

 Check belt for proper routing in all mower 

pulley grooves.
•  Raise attachment lift lever to highest position.

PRECISION SIDE-TO-SIDE ADJUSTMENT  

(See Fig. 23)

•  With all tires properly inflated, park tractor on level 

ground or driveway.

CAUTION: Blades are sharp. Protect 

your hands with gloves and/or wrap 

blade with heavy cloth.

•  Raise mower to its highest position.
•  At both sides of mower, position blade at side and 

measure the distance (A) from bottom edge of blade 

to the ground. The distance should be the same on 

both sides.

• 

If adjustment is necessary, see steps in Visual Adjust-

ment instructions above.

• 

Recheck measurements, adjust if necessary until both 

sides are equal.