Buderus G315 Assembly, Maintenance And Operating Instruction page 11

6 Boiler Assembly
• Insert the elastic sealing cord ("Dichtschnur") into the
sealing groove only on the front side of the rear
section. Start at the top and press lightly to adhere to
the Primer 181 (Fig. 11).
• Unroll sealing cord and remove paper backing during
installation. Cut sealing cord to length with a pair of
scissors or knife. Butt sealing cord ends tightly
together or overlap cord ends 1" for proper sealing.
• Clean a set of push nipples with a rag soaked in
thinner. Wipe dry. A set consists of the 4
top nipple and the 2
1/4
• Evenly coat slightly over half the width of the outer
surface of each push nipple with the orange sealing
compound.
• Insert the coated side of the nipples into the ports.
• Set nipples in place by tapping evenly with a rubber
or wooden mallet. Make sure the nipples remain
perfectly aligned with the boiler section (Fig. 12).
NOTE: If a burr on the push nipple occurred
during nipple insertion, file it off
immediately !
• Finish coating the outer surface of the push nipples
with orange sealing compound.
• Clean and coat nipple ports of intermediate section
with orange sealing compound. Also clean flueway
sealing grooves.
This completes the preparation of the joint between the
rear section and the first intermediate section.
Check: 1. Both push nipples installed evenly with the
rear section and nipples and ports fully
coated with orange sealing compound.
2. Sealing cord is properly installed in all
sealing grooves.
• Position intermediate section in front of rear section
and hang from upper push nipple. It may be
necessary to lift up the intermediate section at the
bottom with a bar. Arrow markings must point to
the rear.
• After aligning ports with push nipples, tap against the
intermediate section with the mallet to seat it on the
push nipple.
10
" x 2"
3/4
" x 2" bottom nipple.
Sealing
groove
Fig. 11
Coat with orange sealing compound
Fig. 12
Fig. 13
Coat with orange
sealing compound
Coat with
primer 181
Sealing cord