42/23-51 EN Rev. 3
SCC-F Sample gas feed unit Operator’s manual
25
Replacing the dosing pump hose,
continued
Replace dosing pump
hose
(continued)
Step Action
Fit a new hose:
6
Insert a new hose
3
with hose connections in the guides on the moving
belt
1
.
7
Insert moving belt
1
with the new hose in the dovetail guide
6
in the
pump head; using the handles, press the moving belt together while at
the same time turning the S-clip
2
counterclockwise until it engages.
8
Screw the hoses to the hose connections
4
.
Take care not to kink or crush the hoses.
Start the sample gas feed unit again:
9
Switch on power supply to feed unit.
10
The sample gas flow should only be restarted after the lead time
period.
Figure 8
Dosing pump,
hose and pump head
with roller mounting
1
Moving
belt
2
S-clip
3
Hose
4
Hose
connections
5
Pressure
rollers
6
Dovetail
guides
1
2
1
3
4
5
6
