MTD 769-04164 Benutzerhandbuch

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Always stop engine, 
disconnect spark 
plug, and ground 
against engine before 
cleaning, lubricating 
or doing any kind 
of maintenance or 
adjustments on your 
machine.
WARNING
6
Maintenance
& Service
General Recommendations
1.  Always observe safety rules when performing any 
maintenance.
2.  The warranty on this snow thrower does not cover 
items that have been subjected to operator abuse or 
negligence. To receive full value from the war-
ranty, operator must maintain the snow thrower as 
instructed in this manual.
3.  Periodically check all fasteners and hardware to 
make sure these are tight.
WARNING:  Before  servicing,  repairing, 
lubricating  or  inspecting,  disengage  all 
controls  and  stop  engine.  Wait  until  all 
moving parts have come to a complete 
stop.  Disconnect  spark  plug  wire  and 
ground it against the engine to prevent 
unintended starting. Always wear safety 
glasses  during  operation  or  while  per-
forming any adjustments or repairs.
Shave Plate and Skid Shoes
The shave plate and skid shoes on the bottom of the 
snow thrower are subject to wear. They should be 
checked periodically and replaced when necessary.
To remove skid shoes:
1.  Remove the four carriage bolts and hex flange nuts 
which secure them to the snow thrower. 
2.  Reassemble new skid shoes with the four carriage 
bolts (two on each side) and hex flange nuts. Refer 
to Figure 9.
To remove shave plate:
1.  Remove the carriage bolts and hex nuts which attach 
it and the skid shoes to the snow thrower housing. 
2.  Reassemble new shave plate, making sure heads of 
carriage bolts are to the inside of housing. Tighten 
securely. 
Augers
•  The augers are secured to the spiral shaft with two
shear pins and cotter pins. If the auger should strike 
a foreign object or ice jam, the snow thrower is 
designed so that the pins may shear. 
•  If the augers will not turn, check to see if the pins
have sheared. When replacing pins, spray an oil 
lubricant into shaft before inserting new pins.
Lubrication
1.  Lubricate pivot points on the auger control and drive 
control with a light engine oil once a season. See 
Figure 10.
2.  Lubricate the face of the auger idler bracket with a 
light weight cold weather lubricant at least once a 
season. See Figure 10.
Engine
Refer to the separate engine manual packed with your 
unit for all engine maintenance.
Check V-Belts 
Follow instructions below to check condition of drive belts 
every 50 hours of operation.
1.  Remove the plastic belt cover on the front of the 
engine by removing the self-tapping screw and press-
ing the plastic tabs to release the belt cover.
2.  Visually inspect for frayed, cracked, or excessively 
worn out belts. Replace, if necessary.
Replacing Belts
NOTE:  There are two belts on this snow thrower: an 
auger belt and drive belt. It is recommended that both 
belts be replaced at the same time. 
1.  Remove the spark plug wire from spark plug and ground it 
against the engine to prevent accidental starting.
2.  Drain gasoline from the gas tank, or place a piece 
of plastic sheet underneath the gas cap to prevent 
gasoline leakage.
Figure 10
NOTE: If auger contin-
ues to rotate with the 
control disengaged, 
shut off engine and 
re-adjust.
Lubricate
Lubricate
Figure 9
Shear Pin
Cotter Pin
Carriage 
Bolt
Shave Plate
Hex Nut
Skid Shoe
Carriage 
Bolt
Hex Nut
NEVER replace the 
auger shear pins with 
standard pins or fas-
teners. Any damage 
to the auger gearbox 
or other components, 
as a result of doing 
so, will NOT be 
covered by your snow 
thrower’s warranty.