Onan NHC Series Operator's/Service Manual And Parts Catalog page 222

GOVERNOR LINKAGE
The linkage must be able to move freely through its
entire travel. Every SOhours of operation clean the
metal joints as shown in Figure 9. Also inspect the
linkage for binding, excessive slack and wear.
K E E P
G O V E R N O R
L I N K A G E
L U B R I C A T E D
F I G U R E 9. G O V E R N O R L I N K A G E
REDUCTION GEAR DRIVE
Drain tiie gear box after the first lOOhours of operation
aiH r e f i l l with fresh lubricant of the recommended
grade. Repeat this procedure every six months there-
after, or everv lOOhours.
Use only SAE50 motor o i l or SAE90 mineral gear o i l .
Do not use lubricants commonly known as extreme
pressure lubricants, hypoide lubricants, etc.
Maintain the proper oil level between changes. Over-
f i l l i n g w i l l cause foaming, which can lead to an o i l
leak due to overheating. Remove the f i l l e r plug on top
of the case and the o i l level plug from the face of the
gear case. F i l l the case until the o i l just begins to
flow from the o i l level plug hole. Gear box holds 1/2
pint U.S. measure. Replace both plugs. See Figure 10.
V E N T P L U G
R E M O V E P L U G
F I L L W I T H O I L T O
L E V E L O F M O L E
F I G U R E IC. R E D U C T I O N G E A R D R I V E
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