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added in summer and lighter oil added in winter. Adding oil
and servicing the cleaner will vary greatly, depending upon
operating conditions. Experience will tell when these services
should be performed. Servicing of this cleaner, an important
operation, must be performed as follows:
Loosen clamp screw and
remove air cleaner assem-
bly. Remove wing nut which
retains the cover and remove
cover and filter element as-
sembly (fig. 35).
Empty the oil out of the
cleaner reservoir and clean
out all accumulated dirt.
Wash filter element by slush-
ing it in cleaning solvent un-
til all foreign matter is re-
moved and dry thoroughly.
Wash cleaner body in clean-
Fig. 35-Servicing
Air Cleaner
ing solvent and wipe dry. Fill the oil reservoir to the oil level
mark with S.A.E. 50 oil in summer and a lighter grade in
winter.
Reassemble the filter element to the cleaner, being sure
that the flange seats properly against the cleaner body. Install
the cover, making sure that the gasket is clean and in good
condition
..
Install and tighten wing nut.
Install the cleaner making sure that it fits tight and is set
down securely. Tighten clamp.
Cr~pkcase
Filler and Ventilator
All 6-cylinder engine models are oil filled through the
valve rocker
cover.
Crankcase ventilation is accomplished
through a ventilator tube assembly located at the lower right
side of the cylinder block on all except forward control
models.
All V -8 engine models are oil filled through a combined
oil filler and ventilator tube assembly located at the front of
the intake manifold.
On Forward Control and V -8 engine models positive ven-
tilation is provided by a vacuum operated ventilator consist-
ing of a vacuum pipe attached at one end to the crankcase
• 28 •
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