DESMI Pumping Technology A/S
12
Tagholm 1
9400 Nørresundby - Denmark
Tel.: +45 96 32 81 11
Fax +45 98 17 54 99
E-mail:
11.
INSPECTION
AND
MAINTENANCE
Inspect the shaft seal for leaks at regular intervals.
- Before inspection of a pump without guard check that the pump cannot be started
unintentionally.
- The system is to be without pressure and drained of liquid.
- The repairman must be familiar with the type of liquid which has been pumped as well
as the safety measures he is to take when handling the liquid.
The drain hole at the mechanical shaft seal must be inspected regularly (see drawing example
below). Clean the drain hole as needed. If the drain hole clogs up, leaking liquid and/or vapors
from the shaft seal can be forced up into the bearing unit, which can result in a much shorter
bearing life than normal.
DRAIN HOLE FOR SHAFT SEAL
11.1
DRAINING
THE
PUMP
When the piping system has been drained, note that there is still liquid in the pump. Remove the
liquid by dismantling the pipe plug (3) at the bottom of the pump.
11.2
BEARING
ø215/265
The bearing in the 02-combination is dimensioned for a nominal life of 25,000 working hours. The
bearing is lubricated for life and requires no attention but is to be replaced in case of noise or
bearing wear.
ø330/415
The bearing is dimensioned for a nominal life of 100,000 working hours and is to be relubricated
according to the below table. The bearing is to be replaced in case of noise or bearing wear.
Light bearing housing ø330/415 (single-row ball bearing in 80-330, 100-330, 125-330, 100-415
and 125-415)
The bearing is to be re-lubricated through the lubricator nipple (84) in the bearing cover (15). In
connection with replacement, the bearings are to be mounted with the RS - sealing facing
downwards, fill the bearing itself with grease and place a grease bead on the bearing towards the
shaft in a quantity corresponding to the table below.
Summary of Contents for NSLH Compact Spacer
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