MTD 78 Series User Manual

78/83/90 Series Horizontal Shaft Engines
8
To check the oil with a threaded dip stick:
1. Twist and remove the dip stick from the engine.
2. Clean the oil off of the tip of the dipstick.
3. Re-insert the dipstick without threading it in to get
the oil level reading.
See Figure 1.5.
4. The oil level is determined by the lowest point on
the dipstick that is completely covered with oil.
To check the oil with a 1/4 turn dip stick:
1. Twist and remove the dip stick from the engine.
2. Clean the oil off of the tip of the dipstick.
3. Re-insert the dipstick and turn it until it is fully
seated to get the oil level reading.
See Figure 1.6.
4. The oil level is determined by the lowest point on
the dipstick that is completely covered with oil.
Changing the oil
NOTE: If the engine has been running, allow the
engine to cool before doing any mainte
-
nance work.
NOTE: The oil should be changed after the first 5 hours of operation and every 50 hours there after.
1. Place a suitable drain pan under the drain plug to
collect the oil.
2. Drain the oil by removing the drain plug located at
the end of the extension pipe threaded into the base
of the engine, using a 10mm wrench.
See Figure 1.7.
3. When all of the oil has drained out, reinstall the
drain plug. Tighten the drain plug to a torque of 106-
124 in-lbs (12-14 Nm).
4. Fill the engine with 37 fl.oz (1.1 liters) of fresh, clean
oil that is the appropriate weight for the application.
5. Safely dispose of the used oil according to the local
laws and regulations.
Figure 1.5
Do not thread
dipstick in to check
the oil level
Figure 1.6
Fully seat the
dip stick before
reading it
Figure 1.7
Oil drain

MTD 78 Series Specifications

General

Brand	MTD
Model	78 Series
Category	Engine
Language	English