DP-3000 Series Linear Dispensing Pump Upgrade Kit Owner’s Manual P/N 7206913, Revision A
NOTICE This is an Asymtek publication, which is protected by copyright. Original copyright date 2005. No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of Asymtek. The information contained in this publication is subject to change without notice. Manuals on the Internet For the convenience of Asymtek customers and field service representatives, copies of this manual can be downloaded from: http://www.asymtek.com/support/manuals.
1 Introduction Pumps DP-3000 series pumps are designed so that you can easily convert the pump to another model or add options. The interchangeable parts are: • Motor type (including upgrade to encoder control) • Chamber size • Gear ratio This section provides procedures for performing the upgrades listed above. You can convert the DP-3000 to another model by changing the drive motor. You can also use the same procedure to replace the drive motor if it fails.
2 Upgrading the DP-3000 Changing the Motor This section provides instructions for removing and installing a motor. CAUTION! The Motor Encoder Assembly is a delicate assembly. Failure to handle the assembly with care will jeopardize the functionality of the assembly. Tools Needed • 5/64-inch hex key • 2-mm hex key • 3-mm hex key • 2.
Feed Screw Gear Motor Gear Motor Cable Connector Valve Control Socket Figure 2-1 DP-3000 with Main and Gear Covers Removed Figure 2-2 Disconnecting the Motor Cable and Clamp Motor Mount Disc Motor Shaft Bolt Circle Motor O F F Swinging Bracket Motor Cable Connector Figure 2-3 DP-3000 with Motor Removed Upgrading the DP-3000 3
Installing the Motor Refer to Figure 2-2 and Figure 2-3 to locate parts. To install the new motor: " 1. With the swinging bracket open, slide the new motor into the back of the DP-3000. 2. Rotate the motor mount disc so that the bolt circle lines up with the bolt circle on the motor. 3. Install the three screws onto the motor mount, and use the 2.5-mm hex key to tighten them. NOTE 4.
Changing the Chamber Size There are two available chamber sizes for use with the DP-3000: 1-cc and 2-cc. You can order conversion kits, which enable you to convert the pump between the two sizes. The part numbers for the kits are SDP-3X2X (1-cc) and SDP-3X4X (2-cc). (The approximate, calculated chamber volumes are: 1-cc = 1.107 cc and 2-cc = 2.492 cc.) " NOTE When you order a kit, you must specify that you want to perform a chamber upgrade. The receiver block, piston and pumping chamber must all match.
4. Pull gently down on the slide retainer to remove it. 5. Using the 2.5-mm hex key, loosen the two assembly screws that attach the receiver block to the pump. ! 6. These screws are captive and should remain attached. Pull the receiver body gently downward, and remove it. Piston Extraction Tool PRIME FULL LIMIT STOP COCK 1/1 3/4 1/2 1/4 Wrench 0 Piston Figure 2-5 Using the Piston Extraction Tool 7.
c. Select Setup Purge Station. d. Make sure that the checkbox labeled Timed Purge is NOT checked. e. Click on Purge. " 11. Press OK. 12. Using the adjustable wrench, turn the piston tool, and remove the piston. NOTE The dispensing system interlocks must be disabled or the doors must be closed when you click Purge. - See the DP-3000 Owner’s Manual for a description of DP-3000 commands. - The piston will fully extend from the pump body and stop at the bottom of its travel.
Changing Gears You can modify the DP-3000 flow rate by interchanging the gear sizes within a given gear box for your motor. Gear ratio adjustment allows you to change the speed of the lead screw to optimize the flow rate for your application. There are three possible gear ratio combinations available: 24/56 56/24 40/40 These figures indicate the number of teeth on each gear. These configurations may be used with any motor type to modify the speed range.
. Position the gears so that they are the same height. CAUTION! It is important that the gears are properly aligned for the pump to function correctly. Gears that are not aligned to the same height may shear, causing damage to the pump. 12. When the gears are properly positioned, use the 1/16-inch hex key to tighten the set screws in the gears. 13. Replace the gear cover and gear cover screws.
Asymtek Headquarters 2762 Loker Avenue West Carlsbad, CA 92010-6603 USA Tel: (760) 431-1919 1-800-ASYMTEK (1-800-279-6835) P/N 7206913, Revision A © 2005
