Troy-Bilt LTX-1842 Benutzerhandbuch

21

To properly sharpen the cutting blades, remove equal 
amounts of metal from both ends of the blades along 
the cutting edges, parallel to the trailing edge, at a 25° 
to 30° angle. See Figure 12.

If the cutting edge of the blade has already 

been sharpened to within 5/8" of the wind wing radius, 
or if any metal separation is present, replace the blades 
with new ones. See Figure 12.

It is important that each cutting blade edge be ground 
equally to maintain proper blade balance. 

A poorly balanced blade will cause excessive vibration 
and may cause damage to the tractor and result in 
personal injury. 

The blade can be tested by balancing it on a round 
shaft screwdriver. Grind metal from the heavy side until 
it balances evenly. 

When replacing the blade, be sure to install the blade 
with the side of the blade marked ‘‘Bottom’’ (or with a 
part number stamped in it) facing the ground when the 
mower is in the operating position. 

 Use a torque wrench to tighten the blade 

spindle hex flange nut to between 70 foot-pounds and 
90 foot-pounds. 

Be sure to shut the engine off,

remove ignition key, disconnect the spark
plug wire(s) and ground against the engine to
prevent unintended starting before removing
the belt(s).

All belts on your tractor are subject to wear and should 
be replaced if any signs of wear are present.

The V-belts found on your tractor are 

specially designed to engage and disengage safely. A 
substitute (non-OEM) V-belt can be dangerous by not 
disengaging completely. For a proper working machine, 
use factory approved belts.

To change or replace the deck belt and PTO belt on 
your tractor, proceed as follows:

•

Lower the deck by moving the deck lift lever into the 
bottom notch on the right fender.

•

Remove the belt guards by removing the self-
tapping screws that fasten them to the deck.

•

Grasp the rearmost portion of the PTO idler bracket 
and pivot it toward the discharge chute to relieve 
tension on the PTO belt. 

•

Remove the PTO belt from around the engine 
pulley (and from around the PTO idler pulley(s).

•

Grasp the deck idler pulley and pivot it toward the 
left to relieve tension on the deck belt. 

•

Remove the deck belt from around all pulleys, 
including the deck idler pulley.