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Fig. 11:
1 Capillary rods (6×)
2 Operating fluid reservoir
3 O-ring
Assembling operating fluid reservoir
1. Insert the new capillary rods using tweezers.
2. Insert the operating fluid reservoir up to the stop in the pump base.
3. Insert the o-ring in the groove in the pump bottom part.
4. Mount the housing cover.
5. Tighten the housing cover with the Torx screws.
6. Screw the rubber-metal bumper into the pump base.
7.4 Replacing electronic drive unit
Damage to the vacuum pump and electronic drive unit due to improper disconnection of com-
ponents
Even after the power supply has been switched off, the vacuum pump continues to deliver electrical
energy during its run-down period. If the vacuum pump and electronic drive unit are disconnected
prematurely, there is the risk of body contact and consequently the destruction of electronic compo-
nents.
► Never disconnect the vacuum pump and electronic drive unit from each other if power is still con-
► Monitor the rotation speed via the parameters available in the electronic drive unit (e.g. [P:398]).
► Wait until the vacuum pump comes to a standstill (rotation speed f = 0).
Property damage from electrostatic discharge
Neglecting the electrostatic hazard for electronic components results in their damage or destruction
► Implement ESD safety measures at the workstation.
► Observe EN 61340 "Protection of electronic devices from electrostatic phenomena".
2
1
Insert capillary rods and install operating fluid reservoir
– When doing so, do not exert pressure on the operating fluid reservoir.
– Tightening torque: 0.8 Nm.
nected or if the rotor is running.
3
4
4
Housing cover
5
Rubber-metal bumper
6
Torx screws
NOTICE
NOTICE
5
6
Maintenance
37/54
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