SPX TG H15-50, Instruction Manual, Page: 63 / 110

63
1480
1530
1540
1530
1480
1480
1540
TG H2-32 – TG H185-125
TG H360-150
Conical plug
ISO 7/1 - R 1/2
Conical pipe end
ISO 7/1 - R 1/2
Plug with collar
ISO 228/1 - G 1/2
Conical pipe end
ISO 7/1 - R 1/2
A.0500.351 – IM-TGH/07.02 EN (10/2015)
1. Loosen the set screws (1480).
2. Tighten the bolts (1540).
3. The pump shaft with roller bearing and
rotor will be pushed against the pump
cover. The axial clearance is then zero.
4. Install a gauge on the bearing bracket.
5. Position the feeler gauge against the
shaft end and initialise the gauge.
6. Loosen the bolts (1540) and tighten
the set screws (1480) thus pushing rotor
and roller bearing backwards.
7. Tighten the set screws until the distance
between shaft end and bearing bracket has
been increased by the required clearance.
8. Lock the shaft again by tightening the bolts (1540).
The set clearance may be changed again. Therefore,
when pushing the shaft end backwards,
the clearance should be enlarged by 0.02 mm.
3.21.7 Designation of threaded connections
To make clear what sealing type of threaded connection is provided we denominate them according
to standards ISO 7/1 and ISO 228/1 as follows.
3.21.7.1 Threaded connection Rp (example Rp 1/2)
If no flattened sealing face is provided we call the connection Rp accordingly ISO 7/1. This
connection has to be sealed in the thread.The plugs or pipe connections must be provided with
conical thread according to ISO 7/1 external thread (example ISO 7/1 – R1/2).
3.21.7.2 Threaded connection G (example G 1/2)
If the threaded connection is provided of a flattened sealing face we call it G according ISO 228/1.
This connection can be sealed by a gasket. The plugs or pipe connections must be provided with a
sealing collar and cylindrical external thread according to ISO 228/1 (Example ISO 228/1 - G1/2).
Plugs or pipe connections provided with conical thread according to ISO 7/1 external thread
(example ISO 7/1 – R1/2) can also be used.
ISO 7/1 Type Symbol Example
Internal
thread
Cynlindrical (parallel) Rp ISO 7/1 – Rp 1/2
External
thread Always conical
(tappered)
R ISO 7/1 – R 1/2
ISO 228/1 Clearance class Symbol Example
Internal
thread
Only one class G ISO 228/1 – G 1/2
External
thread
Class A
(standard)
G ISO 228/1 – G 1/2
Class B
(extra clearance)
G...B ISO 228/1 – G 1/2 B
ISO 7/1 Type Symbol Example
External
thread Always conical
(tappered)
R ISO 7/1 – R 1/2