ASSEMBLING PUMP SET
DESMI Pumping Technology A/S
Tagholm 1
9400 Nørresundby
– Denmark
Tlf. nr.: +45 96 32 81 11
Fax +45 98 17 54 99
105
E-mail: [email protected] www.desmi.com
3. Press the seat into place with the fingers and
check that all parts are correctly imbedded.
NOTE: If it is necessary to use tools for assembling, then protect the sliding surface of the
seat to prevent it from being scratched or cut. Lubricate the inner surface of the slide ring
rubber bellows with a thin layer of silicone grease (ensure that no silicone grease ends up at
the slide surfaces) and push it over the shaft. The use of a conical fitting bush as shown on
the assembly drawing is recommended to avoid that the rubber bellows is cut.
NOTE: Push the slide ring over the shaft with the hand. If the rubber bellows is tight, use a
fitting tool and take care that the slide ring is not damaged. If the carbon ring is not fixed, it is
important to check that it is fitted correctly, i.e. the chamfered/lapped side is to face the seat.
The carbon ring can be held by a little grease.
NOTE: When using silicone grease on the shaft, the bellows will settle and seat in abt. 15
minutes, and until then tightness should not be expected. After start, check by viewing the
leak hole that there are no leaks.
10.2.5. Fitting impeller
Ø215/265
1. Fit the sunk key in the shaft and lead the
impeller towards the shoulder of the shaft.
Secure the impeller with washers (7 and 8) and
a nut.
Summary of Contents for NSL 100-215
Page 2: ......
