How to change the oil and filter on your SOGEVAC SV40 B vacuum pump Jan, 2024
Oil-sealed vacuum pump oil and filter replacement
In this blog we will walk you through how to change the oil and filter on your SOGEVAC SV 40 B vacuum pump. Changing the oil on a vacuum pump is essential for maintaining its efficiency and longevity. This quick guide covers the step-by-step process, tools you'll need, and tips to ensure a smooth oil change. Regular maintenance not only keeps your pump running smoothly but also helps prevent costly repairs down the road.
We recommend using this tutorial alongside the instruction manual (300267596).
Why is vacuum pump maintenance important?
An oil change acts to clean out the arteries of your vacuum pump. Only pure, clean, and unworn oil will manage to keep up with all the vital roles to protect your asset and production against unforeseen interruption. If you do not replace the oil and filter in your vacuum pump on time, the oil can become contaminated with particles and moisture, reducing its lubricating properties, and causing increased wear on internal components. Changing the oil and the filter removes all harmful build-up from within the system and decreases majority of the risk at low cost.
What to know before you begin vacuum service
Please follow safety recommendations for this service.
Before beginning service turn off your pump and leave to cool to a safe handling temperature. This usually takes around 1 hour.
Tools needed for this service:
Strap wrench
Allen key set
12mm spanner
Syringe
Spare kits needed for this service:
| Version | Normal | ATEX | PFPE | DOT4 | Oil & (Capacity) | Filter |
| SV120B Oil Capacity (3.0L) |
EK9605M | EK9605PM | EK9605PM | LVO120 (1x L12002 + L12001), OR LVO140 (3x L14001), OR LVO210 (1x L21002 + L21001), OR LVO700 (1x L70002 + L70001) | EK96005 | |
| SV100B Oil Capacity (2.0L) |
EK9605M | EK9605AM | EK9605PM | LVO120 (1x L12002), OR LVO140 (2x L14001), OR LVO210 (1x L21002), OR LVO700 (1x L70002) | EK96005 | |
| SV65 B(I) Oil Capacity (2.0L) |
EK9604M | LVO110 (1x L10002), OR LVO200 (1x L20002), OR LVO420 (2x L42001), OR LVO700 (1x L70002) | No Filter Needed | |||
| SV40B(I) Oil Capacity (1.0L) |
EK9603M | EK9603AM | LVO120 (1x LV12001), OR LVO300 (1x L30001), OR LVO420 (1x L42001), OR LVO700 (1x L70001) | No Filter Needed | ||
| SV65B Oil Capacity (2.0L) |
EK9604M | EK9604AM | EK9604PM | LVO100 (2x L10001), OR LVO120 (1x L12002), OR LVO130 (1x L13002), OR LVO150 (1x L15002), OR LVO210 (1x L21002), OR LVO300 (2x L30001), OR LVO400 (2x L40001) |
EK96004, OR EK96003 (for DOT-Version) | |
| SV40B Oil Capacity (1.0L) |
EK9603M | EK9603AM | EK9603MDOT | EK9603MDOT | DOT4 (1x E20010037), OR LVO100 (1x LV10001), OR LVO120 (1x LV12001), OR LVO130 (1x LV13001), OR LVO150 (1x LV15001), OR LVO210 (1x L21001), OR LVO400 (1x LV40001) |
EK96004, OR EK96003 (for DOT-Version) |
| SV25B Oil Capacity (0.5L) |
EK96025M | LVO120 (1x L12000), OR LVO140 (1x L14001), OR LVO210 (1x L21000), OR LVO300 (1x L30000), OR LVO700 (1x L70001) | No Filter Needed | |||
| SV16B Oil Capacity (0.5L) |
EK96016M | LVO120 (1x L12000), OR LVO140 (1x L14001), OR LVO210 (1x L21000), OR LVO700 (1x L70001) | No Filter Needed |
Follow along with the video tutorial
Part One: Disassembly
How to remove the oil and filter on a vacuum pump.
- Begin by using a 12mm allen key to remove the oil filler plug.
For a drain plug
Place a tray with a minimum volume of 1.5 liters underneath the drain plug.
Remove the oil drain plug with a 12mm allen key.
Drain the oil from the vacuum pump.
For a drain valve
Place a tray with a minimum volume of 1.5 liters underneath the drain plug.
Remove the Threaded Cap with a 12mm allen key and attach the drain valve with a hose. (The hose will come with the pump).
Drain the oil from the vacuum pump.
Unscrew the bolts with a 6mm allen key to remove the exhaust flange.
Remove the exhaust flange and exhaust filter.
Remove the O-ring from the casing.
Suck out the remaining oil from the casing using a syringe.
Now disassemble the exhaust filter.
Place a tray with a minimum 1.5 liters underneath the oil filter.
Using a strap wrench, remove the oil filter from the vacuum pump.
Pour the oil from the oil filter into the tray.
Clean the excess oil from the pump with a cloth and cleaning liquid.
Part two: Assembly
How to reassemble the exhaust filter and flange on a vacuum pump.
Begin by assembling the exhaust filter and flange. The threaded stud of the filter may protrude a maximum of 1mm above the nut.
Next, apply vacuum grease to the filter.
Lubricate the exhaust filter O-ring with vacuum grease and assemble it.
Fit the exhaust filter back onto the vacuum pump. Tighten the bolts using a 6mm allen key and 23Nm of torque.
Now apply oil to the oil filter.
Fit the oil filter back onto the pump.
Apply vacuum grease to the oil drain plug O-ring.
Fit the oil drain plug back onto the pump using a 12mm allen key.
Fill the pump with approximately 1 to 1.5 liters of appropriate oil – or until the oil level reaches ‘max.’ This can be seen on the oil level sight glass.
Place the oil filler plug back onto the vacuum pump.
The oil and filter change is now complete! Make sure to dispose of any old parts according to your local disposal regulations, and to store your tools, ready for your next vacuum pump service.
Need the help of a vacuum pump service expert?
Visit our vacuum pump repair page to find all of our vacuum service solutions, and to contact a service professional
