Fuel Standpipe Installation - Webasto Thermo 90 ST B Installation Manual

Thermo 90 ST

8.2 Fuel Standpipe Installation

This separate fuel pickup precludes any effect of
pressure.
Where available, a spare NPT threaded port can be
utilized for the standpipe. If a spare port is not present,
proceed with the following instructions under "To install
the standpipe".
Ø 25mm (1")
Fuel Tank
Ø 25mm (1")
Detail View
A. Fuel standpipe
B. Compression fitting
C. Hex nut
D. Metal washer
E. Rubber washer
F. Tank boss 1/4" NPT
G. 25mm (1") hole
Figure 18: Webasto fuel standpipe
www.webasto.us
To install the standpipe:
A
B
C
D
E
F
25mm (1")
F
G
Figure 19: Standpipe installation - illustration 1
17
1. bore a 25mm (1") hole through top of fuel tank
(item G, Figure 18).
2. remove sharp burrs and smooth edges with emery
cloth.
3. determine length of standpipe when installed. End
should sit at least 25mm (1") above tank bottom.
Cut off excess standpipe at a 45 degree angle.
Remove burrs.
4. loosely assemble items C, D, E, and F (Figure 18).
5. place sealing compound on threads of item B and
thread into item F. Tighten item B completely.
6. slide standpipe into hole at angle. Slip one shoulder
of item F, Figure 18 inside the hole as shown in
Figure 19.
Fuel Supply
Webasto Product N.A., Inc.