Upgrade Kit Owner manual

Upgrading the DP-3000 5

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. Mismatching the items

may result in damage to the pump. Parts that must match are identified below.

Each chamber kit includes a piston that corresponds with the chamber size. Changing the piston will have

a significant effect on the flow rate, and you may need to change other components as well to

accommodate the new chamber size. If the chamber does not fit snugly into the receiver block with a

slight resistance, it is the wrong size. The size of the receiver block is stamped into the part. There should

also be a slight resistance when you slide the receiver slide over to lock the chamber into place. If the

piston is too large, it will not fit through the pumping chamber. However, a piston that is too small for the

pumping chamber will cause leakage into the assembly during dispensing. Leakage into the assembly

may also be caused by a missing seal or O-ring. Refer to the DP-3000 Owner’s Manual for

troubleshooting instructions.

Tools Needed

• 2.5-mm hex key • Chamber upgrade kit

• Piston extraction tool • Thread sealant or Teflon tape

• Adjustable wrench or 5/8” socket and ratchet

To replace the chamber:

1. Remove the fluid reservoir.

2. Remove the pumping chamber and stopcock.

3. Using a small hex key, remove the receiver assembly pins. See Figure 2-4.

DP-3000

PRIME

FULL

LIMIT

STOPCOCK

1/1

3/4

1/2

1/4

Figure 2-4 Removing the Receiver Body

Slide Retainer

Receiver Assembly

Screws

Receiver Body

Receiver Assembly Pins