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PB_2005_2_GB_ZP5000
4.
Principle of operation
Drive of central lubrication pump ZP5000 is effected by means of electromotor with step-down gearing
flanged onto the housing and linked with the worm shaft via Woodruff key in form-fit connection.
Each outlet (4) is equipped with a delivery piston (5) and a control piston (6). A rotary motion is imparted on
the pump shaft (9) with cam disk (10) via drive (2), vertical shaft (7) and bevel-gear pair (8) the delivery
piston (5) getting a stroke motion. The control gear (11) is to actuate the control piston (6). Due to the
stroke motion of delivery pistons (5), lubricant intake is effected through the control ducts (12) of control
pistons (6) and delived into the pressure bore (13). The scraper plate (14) is delivering the lubricant to the
suction bores (15). The stirrer blade (16) pressing the lubricant through the sieve plate (17) into the suction
compartment (18) is arranged in the lubricant reservoir (3).
The central lubrication pump ZP5000 can be supplied with 1 or 2 pumping units (1) installed opposite to
each other with a maximum of 8 outlets each. The rate of delivery can be set infinitely from 0...0,2
cm³/stroke. Upon dispatch of pumps, the rate of delivery has been set to maximum value.
Closing of Outlets
If outlets are not yet or no longer required, these must be set to “Zero Flow Rate“ and should not be closed,
because this can lead to minimal pumping of lubricant. Ideally the surplus outlets should be externally
joined and fed back into the tank.
Assignment of delivery pistons to the feed-line connections
