ASSEMBLY INSTRUCTIONS FOR:
Page 6
11/07/00
Stage 1: Drive nipple into nipple port with care
Inspect nipple and nipple port for damage.
Smear nipple jointing oil sealing compound over nipple and
boring. Gently drive nipple into flow and return nipple ports using
a mallet or synthetic hammer. The nipples must remain firm and
exactly vertical in the nipple ports and must be able to take the
next boiler section without twisting from nipple ports. Take care,
twisted nipples lead to leakage.
Stage 2: Before offering up the boiler section to both inserted
nipples.
Inspect nipple and nipple port for damage.
Smear nipple jointing oil sealing compound over nipple and
nipple port. Place boiler mastic sealing strand into sealing
grooves as shown in diagram opposite
(see Fig. 6.2 For RU 2s
and Fig. 7.3 For RU 3s).
Place boiler section in front of both
inserted nipples. Raise the boiler section onto the inserted
nipples using a flat chisel under the section feet. The inserted
nipples must stand approx. 1 to 2 mm higher than the boring of
the section, which is to be joined. Using a crowbar, raise the
boiler section onto the inserted nipples until nipple and nipple
ports mate and hold.
Inspect boring once again for any dirt deposits before fixing the
pulling-up flanges. Remove dirt deposits if necessary.
Stage 3: To assemble boiler sections using pulling-up tool.
Take care during the pulling-up process that the clearance
between both boiler and section is even. If the clearance is
uneven insert a flat chisel into the narrow point and continue
pulling-up until the clearance is even again.
Driving Nipple into Boring
Diagram showing mastic placement
Raising sections to ensure nipples and borings mate
ASSEMBLY
INSTRUCTIONS
FOR:
RU 1s Assembly
