Hach-Lange SIGMA SD900 Refrigerated Sampler and All Weather Refrigerated Sampler User Manual - Manual (Page 86)

84
Maintenance
6.8 Adjusting the refrigeration compartment door (AWRS only)
Since the door gasket may compress slightly over time, an
adjustment screw is provided to allow the door to be tightened.
Procedure:
1. Loosen the lock nut ( Figure 40 ).
2. Rotate the tension adjustment screw until the door shuts tightly.
3. Tighten the lock nut.
Figure 39 Power junction assembly thermal control box
1 Circuit breaker 2 Power junction assembly control box