JENESIS SHS Series Manual page 29

7 - Change the pump oil every 3 months. Type of oil to be used is SAE 90 GL 4 !
Speck pump oil is changed every 3 months. SAE 90 (gear oil 90) GL 4 (refers to the field of application) must
be use as pump oil. Remove the yellow blind plugs shown in Figure 8 and drain the oil in the pump. After
the oil is completely filtered, the blind plugs are closed again. Remove the black blind plug shown in Figure 9
and complete the pump oil. The pump oil level must be checked by the dipstick.
Figure 8 Figure 9
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