Maintaining your tiller, Warning replacing the belt, Engine – MTD 240 Series User Manual
Page 13: Lubrication, Cleaning tine area

13
Always stop engine, 
disconnect spark plug, 
and ground against engine 
before cleaning, lubricating 
or performing maintenance 
on your machine.
IMPORTANT: Never use a 
pressure washer to clean 
your tiller. Water can 
penetrate tight areas of 
the tiller causing serious 
damage to the unit.
IMPORTANT: Never run 
your engine without the 
air cleaner completely 
assembled.
6
Maintaining
Your Tiller
WARNING
Replacing the Belt
Your tiller has been engineered with a belt made of 
special material for longer life and better performance. 
It should not be replaced with an off-the-shelf belt. See 
the retailer from which you purchased your tiller, an 
authorized MTD Service Dealer, or call 1-800-800-7310 
for information regarding price and availability.
 
1. Remove the frame and engine by removing the six 
screws and lock nuts holding the engine and frame to 
the shield, Figure 6-1.
2. Loosen the lock nut shown in Step A Figure 6-2.
3. Unloop the belt from the pulleys, Step B Figure 6-2.
4. Reassemble the new belt and tighten the lock nut.
5. Reattach frame and engine using the hardware 
removed earlier.
WARNING: Always stop engine, discon-
nect spark plug, and ground against 
engine before cleaning, lubricating or 
performing any maintenance on your 
machine.
Engine
Refer to the separate engine manual for engine mainte-
nance instructions.
• Maintain engine oil as instructed in the separate 
engine manual packed with your unit. Read and follow 
instructions carefully.
• Service air cleaner every ten hours under normal
conditions. Clean every hour under extremely dusty 
conditions. Poor engine performance and flooding 
usually indicates that the air cleaner should be 
serviced. To service the air cleaner, refer to the 
separate engine manual packed with your unit.
IMPORTANT: Never run your engine without 
air cleaner completely assembled.
• The spark plug should be cleaned and the gap reset
every 25 hours of engine operation. Spark plug 
replacement is recommended at the start of each tiller 
season; check engine manual for correct plug type 
and gap specification.
• Clean the engine regularly with a cloth or brush.
Keep the cooling system (blower housing area) clean 
to permit proper air circulation which is essential to 
engine performance and life. Be certain to remove all 
dirt and combustible debris from muffler area.
Lubrication
Transmission
The transmission is pre-lubricated and sealed at the fac-
tory. It requires no checking. See an authorized service 
dealer for any service issues. 
Tine Shafts
Remove tine assemblies and lubricate the tine shafts at 
least once a season.
Wheel Shaft
Remove wheel assembly and lubricate the axle shaft at 
least once a season.
Cleaning Tine Area
Clean the underside of the tine shield after each use. 
The dirt washes off the tines easier if rinsed off im-
mediately instead of after it dries. Always towel dry the 
tiller afterwards and apply a light coat of oil or silicone to 
prevent rusting or water damage.
IMPORTANT: Never use a “pressure washer” 
to clean your tiller. Water can penetrate tight 
areas of the tiller causing serious damage.
Figure 6-2: Loosen the nut to remove the belt.
A
B
Figure 6-1: Remove engine and frame to gain access to the belt. 
(Model 241 shown)
