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Í
èarry out the periodical mahtelianco details
daicribed later irith faithíul regularity.
ÄÍter the first l50 milö, release the drain scr®w
J4, Fig. & two turu, whicl) will allow ainy oil which
may have accumulated to draín out.
Wqi +he
Fig. 7.
Süe elevation of unit.
pgtrou lubrication system employed there is never
a considerable quantity oí 1iquid oil in the crank-
case, but wha,tever oil there is should be drained
away, and this is preíerably done while tho mgine
is wam immediately after ai run, aB the oil wrill flow
l6
(
more íreely a.nd carry with it any íoreign matter
which lnay have fotind its way into the crankcas®
duritig the running-h proc®s.
Make certain on roplacing the screw that it is
made quite tignt iI) order tp prevent loss of crank.
case compi.ession.
Fig. 8.
Front elevation of urit.
Note.
This drain screw on]y concems tbe crank-
case, and not the ge":case, whích cam only be
emptied via the plug Á, Eg. 6.
l7
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