SKF SMD series Handbuch Seite 67

9. Maintenance
SMD 2 / SMD 3
Set to bypass mode
• Set to bypass mode - as described in 9.3
or 9.5
• Loosen cover bolts and remove together
with plastic cover
• Remove or clean existing gears
• Carefully clean the gear chamber of depo-
sits and particles
SMD2
• insert new gears in such a way that the
auxiliary holes point in the direction of
low meter housing

one of the gears bears a little metal shim.
With every rotation of the gear an impulse
is generated by the little metal shims
passing below the NAMUR switch.
• The gear equipped with the little metal
shims must be inserted in such a way that
it sits under the NAMUR switch
SMD3
• The gear equipped with the little metal
shims must be inserted in such a way that
it sits under the NAMUR switch
Change gasket
• If necessary, replace the low meter
housing's o-ring seal
Mount cover
• Place cover on the low meter's housing
• Insert cover bolts in holes (SMD2 = 4x,
SMD3 = 6x)
• Tighten cover bolts with a torque wrench
Tightening torque
SMD 2 = 5 Nm
SMD 3 = 8 Nm
Reset to normal operation
• as described in 9.4 or 9.6
Page 67
closed gear face
closed gear face
Fig. 20 SMD 2
little metal Shim
Fig. 21 SMD 3
EN