Amarex KRT series - Preparing the Pump Set; Dismantling the Pump Section

7 Servicing/Maintenance
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Amarex KRT
WARNING
Components with sharp edges
Risk of cutting or shearing injuries!
▷ Always use appropriate caution for installation and dismantling work.
▷ Wear work gloves.
7.4.2 Preparing the pump set
ü The notes and steps stated in (ðSection7.4.1,Page72) have been observed/
carried out.
1. De-energize the pump set and secure it against unintentional start-up.
2. On pump sets without cooling system (installation type S) drain the lubricant.
3. On pump sets with cooling system (installation types D and K) drain the coolant.
4. Drain the leakage chamber and leave it open for the duration of the
disassembly.
7.4.3 Dismantling the pump section
Dismantle the pump section in accordance with the relevant general assembly
drawing.
7.4.3.1 Removing the back pull-out unit
Standard claw, guide cable arrangement / dry installation:
1. Remove screw plug 903.58. Screw a second eyebolt 900 or a suitable swivel
eyebolt into motor housing cover 812.
2. Undo screwed connection 902.01 and 920.01 and pull the complete back pull-
out unit out of pump casing 101.
3. Place the back pull-out unit in a safe and dry assembly area and secure it against
tipping over or rolling off.
Standard claw, guide rail arrangement:
1. Unscrew and remove eyebolt 900.04 from strip 575.
2. Remove screw plug 903.56 from the middle of strip 575.
3. Screw eyebolt 900.04 into this threaded hole.
4. Undo screwed connection 902.01 and 920.01 and pull the complete back pull-
out unit out of pump casing 101.
5. Place the back pull-out unit in a safe and dry assembly area and secure it against
tipping over or rolling off.
Option with bail:
1. Undo nuts 920.13. Remove bail 571.
2. Screw suitable (swivel) eye nuts onto studs 902.13.
3. Undo screwed connection 902.01 and 920.01 and pull the complete back pull-
out unit out of pump casing 101.
4. Place the back pull-out unit in a safe and dry assembly area and secure it against
tipping over or rolling off.
7.4.3.2 Removing the impeller
The procedures for removing the impeller differ depending on the pump size and
motor in question.