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3700 Portable Samplers
Section 6 Servicing
6.1.3 Removal of the Control
Box
6-2
If there is a problem with the sampler that requires you to ship
your unit back to the factory, it is often easiest to return only the
control box for repair. To remove the control box from the
sampler:
1. Disconnect the power source from the control box.
2. Separate the center section from the sampler following the
procedure described in Assembly and Disassembly of the
Case in Section 2.
3. Remove the suction tube from the pump, and turn the center
section over, as shown in Figure 6-1.
4. Unscrew the distributor arm retaining nut, indicated in
Figure 6-1, and pull the arm off the distributor shaft.
5. Pull the pump tube out of the distributor arm and coil
spring assembly, and feed it out of the pump-tube port in
the center section.
6. You can then remove the control box by unscrewing the six
screws indicated in Figure 6-1, and lifting the center section
off the control box.
7. Screw the six screws and their lock washers into the con-
trol box to prevent losing them.
8. Reattach the liquid-detector lid and pump lid to prevent
their loss.
Note
When you return the control box to the factory, be sure to pack
it securely. Take special care to protect the distributor shaft.
Please include a detailed note explaining the problem.
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