Onan MCCK Series User Manual

CRANKCASE BREATHER RCCK
AND MCCK (Begin Spec B)
These engines areequipped with a crankcase breath-
er for maintaining crankcase vacuum. Clean the
crankcase breather cap and valve assembly and the
breather tube baffle in a suitable solvent every
300
operational hours. To remove breather cap and valve
assembly, remove breather hose clamp and breather
tube clamp. See Figure 21.
SREATHER HOSE
FIGURE 21. CRANKCASE BREATHER
CRANKCASEBREATHERMCCK
(Spec
A Only)
Lift off rubber breather cap. Carefully pry valve from
cap. Otherwise, press hard with both of your thumbs
on top of cap and keep fingers below to release valve
from rubber cap. Wash this fabric, flapper-type check
valve in a suitable solvent.
Dry and install. Position
perforated disc.toward engine. See Figure
22.
1
BREATHERTUBE
CAP'
FLAPPER
VALVE
ASSEMBLY
.AMF
125i
BREATHER.
UBE BAFFLE
FIGURE 22. CRANKCASE BREATHER MCCK SPEC A ONLY
34
Redistribution or publication of this document
by any means, is strictly prohibited.
Redistribution or publication of this document
by any means, is strictly prohibited.

Onan MCCK Series Specifications

General

Cylinders	2
Fuel Type	Gasoline
Governor Type	Mechanical
Starting	Electric
Lubrication System	Pressure
Rotation	Counterclockwise
Bore	3.25 in. (82.6 mm)