Hach-Lange SD900 Refrigerated Sampler, SD900 AWRS User Manual - Manual (Page 41)

Clean the rotor
Clean the rotor, pump tube tracks and pump housing with a mild detergent. Refer to Replace the
pump tubing on page 36 and the illustrated steps that follow.
Replace the distributor arm tube
The distributor arm moves over each bottle during multiple bottle sampling. Replace the tube in the
distributor arm when the tube is worn. Make sure that the correct tube is used for the correct
distributor and distributor arm.
1. Remove the tube from the distributor arm and from the ceiling of the sampler cabinet.
2. Insert the new tube into the distributor arm. Make sure that the tube does not extend out of the
nozzle more than 0.3 cm ( 1 /
8
in.). Refer to Figure 17 .
3. Insert the other end of the tube into the fitting on the ceiling of the sampler cabinet.
4. Complete the diagnostic test for the distributor to make sure that the operation is correct.
Figure 17 Distributor assembly
1 Nozzle 3 Distributor motor 5 Distributor tube
2 Distributor arm 4 Shaft
English 39