Use good quality Engine Lubrication Oil in
both the Main and Reduction sections of the unit.
The Main box holds approx 2.5 pints, the
Reduction 0.75 pints.
A Multigrade Oil which spans 20 grade is OK.
( eg ..10/40 ..20/50 ).
The Main Box Drain Plug is located just aft
of the Bellhousing . Refer Fig 2 Ref 2.37 in the
Spare Parts Index.
The Reduction Box
is a separate oil compartment
and is filled via a Plug and the level checked
via the level plug . Refer to picture.
The Offset Reduction Box Drain Plug is
located directly beneath the Filler Plug.
AVOID OVER FILLING....It causes over-heating.
(And makes a mess.)
The Operating Oil pressure is set at 90/100
psi ( 6 Bar). A box in good order should achieve
this at Tick-over revs. Neutral pressure is in
the order of 40/70psi .
Oil pressure gauges should be attached into
the end of the Control Valve. Refer Fig 2 Ref 2.19
in the Spare Parts Index. The gauge should read
up to 150 psi.