Filling In Of Hydraulic Oil; Venting Of The System (After Complete Filling Only); Cleaning - WIKA CPP7000-X Bedienungsanleitung

8. Maintenance, cleaning and servicing

8.2.2 Filling in of hydraulic oil

Open the high-pressure shut-off valve (see Figure 6.2.1-1 Closing Direction of the valves)
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Open the low-pressure shut-off valve (see Figure 6.2.1-1 Closing Direction of the valves)
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EN
Turn in the spindle pump clockwise until it reaches the initial stop
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Open the locking screw with the oil filling symbol on top of the basement
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Fill in special oil (0.5 liter supplied, or available as accessory) via the tank opening, until the
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fill level reaches the thread of the tank opening (approximately 250ml). The fill level must
always be observed.
Twist out the spindle pump anticlockwise until it reaches the rear stop. The filling medium is
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suctioned out of the tank into the system.
Close the tank opening with the locking screw
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8.2.3 Venting of the system (after complete filling only)

After initial filling, or after a complete oil change, air may be trapped in the system. The system
should be vented using the following procedure:
Open the high-pressure shut-off valve (see Figure 6.2.1-1 Closing Direction of the valves)
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Open the low-pressure shut-off valve (see Figure 6.2.1-1 Closing Direction of the valves)
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The test connections must be open
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Twist out the spindle pump counter-clockwise until it reaches the rear stop.
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Carefully pump using the initial pressure pump, while continuously observing the filling
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medium in the open test connections. At this point, trapped air escapes toward the exterior
by means of the formation of bubbles. The initial pressure pump must be actuated until air
bubbles no longer appear.
Any oil escaping in the open test connections should be siphoned off, for example, with a
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nozzle.
8.3

Cleaning

Before cleaning, make sure that the comparison test pump model CPP7000-X is unpressurised.
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Clean the instrument with a moist cloth.
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Wash or clean the instrument, in order to protect persons and the environment from exposure to
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residual media.
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CAUTION!
Damage to the instrument
Improper cleaning may lead to damage to the instrument!
Do not use any aggressive cleaning agents.
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Do not use any hard or pointed objects for cleaning.
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WIKA Operating Instruction, model CPP7000-X