RANS S-20 RAVEN
TEXT MANUAL
09/01/2013
03D-02
NOTE:
Use the upper cooler mount as a template. Mark and cut.
The piece for the top of the oil cooler needs two holes to allow for
the fittings.
7.
Locate Oil Cooler Mount Bracket onto Upper Oil Cooler Mount per
FIGURE 03D-07
. Drill, countersink holes on Upper Oil Cooler Mount, and
rivet together.
8.
Apply Loctite to bolts and assemble the upper and lower mounts to the
Cooler using the Threaded Bushings.
NOTE: To achieve the proper
compression on the Silicon Sheets, it might be necessary to add washers
between the threaded bushings and the upper and lower oil cooler
mounts.
9.
Bolt the Oil Cooler Assembly to the AFT side of the radiator through the
Oil Cooler Mount Bracket, as shown in the PARTS MANUAL DRAWING.
Use Loctite to secure the bolt.
10.
Refer to the parts manual for oil line routing.
IMPORTANT:
The pickup fitting is the straight fitting (OUT) on the
oil bottle and
MUST
route to the left hand fitting on the oil cooler.
The return fitting is the angled fitting (IN) on the oil bottle and
MUST
route to the fitting on the bottom of the engine. Failure to route the
oil lines properly will result in engine failure.
11.
Fill the Oil Cooler and pickup side with oil using a syringe or funnel before
engine start-up. Install the Oil Lines onto the Oil Tank. Use a back-up
wrench on the Cooler and Oil Tank when tightening fittings.
12.
Apply anti-chafe and secure all lines as necessary.
13.
Cut to length and install the Overflow Line from the Oil Tank filler neck to
the Breather Tube located on the firewall. For tube fabrication, refer back
to
ENGINE ACCESSORY INSTALLATION
. Secure ends with safety wire.
PRE-ENGINE START UP
Refer to
ROTAX
for a more thorough Pre-start up procedure.
14.
Prior to starting the engine for the first time, install a new oil filter and fill
the Oil Tank to the full line on the dipstick. Refer to the Rotax manuals for
oil specifications.
15.
Remove the spark plugs on all four cylinders.
16.
Verify the ignition switch is
OFF
.
17.
Turn the prop through several revolutions by hand.
18.
With the spark plugs out and from the pilot’s seat, turn the key switch to
the start position and crank the engine for several seconds. Check for an
oil pressure indication on the gauge.
