Subject to change · V 0.1 · 02.2020 · EN
Page 20
www.argo-hytos.com
9
8
7
6
5
4
3
2
1
Fig. 9: Replacing the motor and the pump
10.4.1 Removing the pump / motor
1. Unscrew the cylinder screws (Pos. 1 and 2) and release the motor / pump unit (Pos. 4 - 8) from the block (Pos. 3) in upward direction.
2. Unscrew the cylinder screws (Pos. 4) and release the motor (Pos. 8) from the pump (Pos. 7).
NOTE
›
When replacing the pump / motor, the O-rings (Pos. 5 and Pos. 7) must always be replaced by new O-rings.
Please take the Order No. from the spare parts list.
10.4.2 Installing the pump / motor
1. Lubricate the O-ring (Pos. 7) and insert it into the provided O-ring groove of the pump (Pos. 6).
2. Place the pump (Pos. 6) onto the motor (Pos. 8) and press it down. Make sure that the O-ring (Pos. 7) remains in the O-ring
groove and that it is not damaged between the pump (Pos. 6) and the motor (Pos. 8).
NOTE
Observe the alignment of the pump
›
During the subsequent assembly, the suction and pressure kidneys of the pump (Pos. 6) must coincide with those of the pump
block (Pos. 3) (ensure the correct position by a roll pin (Pos. 9)). Please also pay attention to the later position of the terminal box
(Fig. 1 Pos. 4).
3. Fasten the pump (Pos. 6) using the cylinder screws (Pos. 4) (M
A
20
+5
Nm).
4. Lubricate the O-ring (Pos. 5) and insert it into the provided O-ring groove of the pump (Pos. 6).
5. Fill the pump (Pos. 6) with oil via the suction and pressure kidneys and check the pump's operability
(turn the shaft end of the motor once by 360° by hand).
6. Place the motor and pump assembly (Pos. 6 with Pos. 8) overhead on the pump block (Pos. 3).
Make sure that the O-ring (Pos. 5) remains in the O-ring groove and that it is not damaged between the pump (Pos. 6) and
the pump block (Pos. 3).
7. Fasten the motor / pump unit with the cylinder screws (Pos. 1 and Pos. 2) to the pump block (Pos. 3) (MA 20 +5 Nm).
8. Fasten the filter pump block to the machine / system, using the rubber buffers (Order No. UM 045.0709) (M
A
20
+5
Nm).
9. Connect the unit to the power supply according to the electrical connection diagram.
The device can be put into operation (see manual: Commissioning).
If no oil is sucked during commissioning, open the cover at the filter housing and fill in about 0.5 l oil.
