Maintenance, Crankcase oil, I warning – Bolens 137-360-300 User Manual
Page 8: A. oil check, B. oil change
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MAINTENANCE
CRANKCASE OIL
I WARNING
\
Remove the spark plug lead before
performing any maintenance on the
machine.
a. Oil Check
Check the oil level in the crankcase before each
use of the machine and after every two hours of
operation. Keep the oil level to the overflovving
point. See figure 16.
b. Oil Change
After the first two hours of operating a new
engine, drain the oil from the crankcase while the
engine is stili hot and refiil the crankcase with
new oil; thereafter, change the oil after every 25
hours of operation. This procedure ensures for
minimum wear of engine parts and provides for
virtually trouble-free operation. To change the oil,
proceed as follows:
Step 1. With the machine on level ground, place a
suitable metal container under the oil
drain plug located on the front of the
engine. See figure 17.
Step 2. After the oil has been drained completely
from the crankcase, replace the drain plug
and tighten.
Step 3. With the machine on level ground, remove
the oil filler plug. See figure 16. Fill the
crankcase until the oil overflows from the
oil fill hole. Fill slowly to avoid air locks.
The crankcase holds approximately 1 %
pints of good quality SAE 30 type MS
engine oil. Replace the oil filler plug.
FIGURE 17. OIL DRAIN
a. Steering Gears. Lubricate with multi-purpose
automotive type grease once a season.
b. Front Wheel Bearings. Remove the front axle
bolts and coat the axle with a multi-purpose
automotive type grease and reassemble once a
season. See figure 18.
c. King Pins. Lubricate the king pins after every
25 hours of operation with SAE 30 oil. Wipe up
excessive oil with a rag. See figure 18.
d. Rear Axle Bearings. Lubricate the rear axle
bearings after every 25 hours of operation with
SAE 30 oil. Wipe up excessive oil with a rag.
See figure 19.
e. Chain. Remove thé chain once each season,
clean in kerosene, dry and lubricate with a rag
saturated in SAE 30 ojl. See figure 19.
f. Transmission. The transmission has been lu
bricated at the factory and does not need to be
checked.