Figure 7-4. Replacing The Pump; Vacuum Pump Diaphragm And Valve Replacement - Thermo Scientific 42i Instruction Manual

Servicing

Vacuum Pump Diaphragm and Valve Replacement

Vacuum Pump
Diaphragm and Valve
Replacement
7-10 Model 42i Trace Level Instruction Manual
Figure 7–4. Replacing the Pump
2. Remove both inlet and exhaust lines from the pump.
3. Install the new pump by following the previous steps in reverse.
Use the following procedures to replace the diaphragm and valve for the
vacuum pumps (Figure
Equipment Required:
Allen wrench, 4 mm
●
Nut driver, 7/32-inch or 5.5 mm
●
Allen wrench, 3 mm
●
Spanner wrench, 3.8 mm diameter by 4.5 mm long inserts
●
Small flat-blade screwdriver
●
Large flat-blade screwdriver
●
Cleaning agent (alcohol)
●
Fine-grade steel wool
●
"LOC-TITE" blue breakable thread adhesive
●
7–5).
Thermo Fisher Scientific