09/11/2018
RANS S-21 OUTBOUND
TEXT MANUAL
11-11
9.
Fabricate Anti-chafe for Radiator Hoses by splitting a leftover piece and securing
around the Hoses with Plastic Ties.
10.
Secure all hoses with Hose Clamps.
11.
Rivet Coolant Recovery Bottle Mount Bracket with Spacer Shims to firewall.
Secure Overflow Bottle with supplied Clamp to the Mount Bracket.
12.
Route Overflow Hose from Coolant Bottle to Expansion Bottle on engine. Secure
Overflow Hose at each end with Safety Wire.
OPTIONAL HEATER INSTALLATION - RADIANT STYLE
NOTE:
Heater Installation will require the 1" Radiator Hoses to be cut to
install Tees. Refer to Parts Pages.
13.
Drill two 1 1/8" holes in the left hand side of the firewall. Locate holes to avoid
Firewall Components and Exhaust System. Cut Serrated Grommet Strip to length
and install to inside of holes as anti-chafe.
14.
Assemble the Fan to the Heater Core. The fan will have arrows showing the
direction of airflow and the rotation. Make sure the airflow arrow is pointing
toward the Heater Core. Locate #11 holes in the Fan Mounting Plate to match
Fan mounting holes. Attach the Fan Mounting Plates using Truss Head Screws.
The screws will self-tap into the plastic housing of the fan. Orientate the fan so
the wires come out on the same side as the Heater Core Nipples. Drill two #30
holes into the Mounting Plate and Heater Core sides. Rivet with 1/8" Aluminum
Rivets. Refer to
FIGURE 11C-14/912
.
CAUTION:
Be careful not to drill into the heater core. Use a drill-stop!
15.
Attach the Nipples to the Heater Core.
CAUTION:
When working with the Heater Core, be careful not to over-
tighten, or cracking may result. When tightening the fittings, it is necessary
to use a wrench to support the fitting.
16.
Locate the Tees for the heater system. One Tee is located between the Coolant
Pump Inlet and the Radiator Outlet. The second Tee is located in the Radiator
Hose that comes directly out of the Expansion Bottle on top of the engine.
17.
The Heater Core Assembly may be attached to two brace tubes aft of Station 1.
Place the Heater Core so the fan is blowing air down and back into the cabin.
Check for possible interference with panel instruments and Rudder Pedals. Use
Cushion Clamps to secure to the tubes.
18.
Route Heater Hose from Heater Core fittings to Tees forward of the firewall.
19.
Locate the Control Valve in the Heater Hose attached to the Tee in the line
coming from the Expansion Bottle. Locate the Valve in a location that allows
connecting of the Control Cable.
IMPORTANT:
Make sure you are installing the Control Valve in the "HOT"
side connected to the Expansion Bottle on top of the engine.