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6.
Fitting tank dome and mains water telescopic dome shaft
6.4 Inner
cover
The mains water telescope has a second inner cover. Except when
working in the tank, this should always be kept closed. The cover is
screwed onto the flange ring and all screws must always be tightened.
Before the cover is attached, the seal must be inserted all the way
round.
6.5
Assembly of intermediate piece
If an intermediate piece is needed for larger earth covers it is
inserted into the tank dome with the aid of soft soap. The profile
seal is fitted in the topmost groove of the intermediate piece
and greased with plenty of lubricant. Then slide the mains water
telescopic dome shaft into place and adjust to suit the planned
terrain surface.
max. soil cover 1500 mm
7.
Inspection and maintenance
The entire system must be checked for tightness, cleanliness and stability at least once every three
months.
The entire system should be maintained approximately every 5 years. All parts should be cleaned and
their function checked. For maintenance, proceed as follows:
Fully empty tank
Clean surfaces and built-in parts with water
Remove all dirt and contamination from the tank
Check that all built-in parts are securely mounted
Mains water telescopic dome shaft (tilts by 5°)
Intermediate piece
Tank dome (can be rotated 360°)
2016-04
Otto Graf GmbH – Carl-Zeiss-Str. 2-6 – DE-79331 Teningen – Tel.: +49 7641 589-0 – Fax: +49 7641 589-50
GRAF Distribution S.A.R.L – 45, route d´Ernolsheim – FR-67120 Dachstein Gare – Tél.:+33 388 49-7310 – Fax: +33 388 49-3280
GRAF Iberica Tecnología del Plástico S.L. – Marquès Caldes de Montbui, 114 – ES-17003 Girona – Tel.: +34 972 913767 – Fax: +34 972 913766
GRAF UK Ltd – Target House – Thorpe Way Ind. Estate – Banbury – Oxfordshire – UK-OX16 4SP – Tel.: +44 1608 661-500 – Fax: + 44 1295 211333
