Home > Vacmobile SVM 2S Series Instruction Manual
Vacuum pump | Refer to model plate on pump. |
Pumping capacity | Refer to model plate on pump. |
Maximum vacuum |
Refer to model plate on pump, typically better than 20 mbar, 98% vacuum, 15 Torr, 29.3” Hg, -14.4 psi, -99.3 kPa. |
Resin catchpot | 12 litres (3.1 US gallons) |
Trap lid connections |
With pressed steel lid - up to 4. With aluminium lid - up to 8. Connections are available in 4 optional sizes to suit the following outside diameter extruded tubes: 3/8” to 10 mm, 1/2” to 13 mm, 5/8” to 16 mm, or 19 mm to 3/4”. |
Power supply |
Refer to model plate for machine. Typically 230 V, 50/60 Hz, or 110 V/60 Hz. |
Dimensions |
Assembled as shown: Length 465 mm (18.3”) Width 440 mm (17.3”) Height 1,125 mm (44.3”) (Varies slightly with trap options) With trap and handles removed for transport: Length 465 mm (18.3”) Width 345 mm (13.6”) Height 615 mm (24.2”) |
Weight |
Varies with pump model, from approximately 43 kg (95 lbs) to 56 kg (123.5 lbs) |
(Typical parts shown, not necessarily fitted to all machines)
Key:
A B C D E F G H I J K L M N O P Q |
Resin trap lid (optional aluminium lid shown) Vacuum tubing gland on trap lid Resin trap handle (for optional aluminium lid) Vacuum gauge Regulation valve (optional & position may vary) Isolation valve for vacuum regulator (if fitted) Manifold block Absolute pressure gauge connection Pump isolation valve Oil filler plug Oil level indicator Oil drain plug Pump model plate Pump exhaust Machine serial number plate & power details Spare parts box holder Switch |
Key:
R S |
Pump inlet filter Power cord retainer |
Any damaged electrical components on the machine should be repaired or replaced by a qualified electrician before the machine is used.
Disconnect the power supply before servicing the pump or its motor. If the power cord is damaged replace it immediately.
A high level of vacuum is generated. Hoses from the machine should not be applied to any part of the body, especially sensitive tissue such as the eyes or ears.
When used for clamping or lifting, large forces can be generated. Care should be taken to avoid trapping any part of the body between clamping surfaces.
Vacuum may be lost in the event of power or mechanical failure. Vacmobiles must not be used for any lifting operation where loss of vacuum could be dangerous.
This machine is intended for use in dry environments. Do not use in wet conditions and do not clean by washing with a liquid spray.
The electrical components of this machine are not explosion proof. Do not use in a potentially explosive atmosphere.
The vacuum pump must not be allowed to ingest resin or other liquids.
The system must not be operated without a resin catchpot in the resin trap.
The vacuum pump must be filled with oil before start-up.
The machine must only be transported and operated with its base panel horizontal.
The Vacmobile must not be used as a vacuum cleaner. It is designed for use in composite manufacturing processes such as vacuum infusion, vacuum bagging over wet laminate, vacuum bagging over pre-preg and similar applications.
Do not lift machine by its pipe work, or attempt to re-tighten any internal joints. Lift from the machine panels or the handles only.
Ambient temperature limits.
MINIMUM allowable operating temperature = 10°C (50°F)
MAXIMUM allowable operating temperature = 40°C (100°F)
Lock castors before doing any work on the machine.
Fit handles using the bolts supplied. Note that the shorter bolt fits over the corner post.
To prepare for adding oil to the pump, unlatch the panel locking spring and slide the pump out one notch, about 75 mm (3”).
THIS STEP NOT REQUIRED FOR EM12/B VACUUM PUMP. THIS PUMP MAY BE FILLED IN PLACE.
The pump must be filled with the correct grade of oil before use. For the pump models fitted to the SVM 2S, the correct grade will be an ISO 68 (SAE 20) vacuum pump oil. Approximate fill volumes are:
Pump Model Amount ml/pints
PVR EM12/B 330 ml/0.7 pint
PVR EM20/B 450 ml/0.9 pint
Becker U4.20 450 ml/0.9 pint
PVR EM28/B 750 ml/1.5 pints
DO NOT OVERFILL! Fill to ¾ level on the sight glass maximum.
Slide the resin trap into the top docking position. The trap control manifold can face the handle side or face away from the handles as preferred. Push the trap in until its base panel latches in place.
To remove the aluminium resin trap lid, push down on the handles and rotate them until the cap screw below the handle disengages from the trap body. With both cap screws disengaged, the lid may be lifted off.
If the lid gasket is stuck, “bump” the lid with the palm of your hand.
The machine must not be used without a catchpot in the resin trap!
For resin degassing, a polyethylene bucket is available as an option. The polyethylene bucket must not be used for catching large volumes of exothermic resin, as there is a risk it will melt.
Before fitting the lid, check that the cap screws below the handles face away from the resin trap body.
Position the lid on the trap and rotate the two handles until the two cap screws lock underneath the lip on the trap body.
Note: To remove the gauge for future transport, push down on the orange socket to release the lock.
Connect the power cord and retain as shown.
The vacuum tubing connections are designed for smooth walled extruded vacuum tubing, usually translucent polyethylene. To fit a tube:
To ease the motor starting load when the pump is cold:
If ambient temperature is above 15°C (60°F), the pump may be started with the valves in any position.
For a regulated level of vacuum, open the valve below the vacuum regulation valve. Adjust the vacuum level by rotating the aluminium cap on the vacuum regulation valve.
Some resin systems such as polyester and vinyl ester may require a reduced level of vacuum to avoid resin “boil-off”. Check with your resin supplier, or set the vacuum to -75 kPa (22.5” Hg).
For maximum vacuum, close the valve below the vacuum regulator.
An absolute gauge is useful for precision vacuum measurement, faster detection of vacuum leaks and the detection of water vapour. Plug the gauge into accessory socket provided underneath the aluminium manifold block.
Regular pump oil changes and dust removal from the motor and pump services will prolong pump life. While 500 hours is the maximum recommended service interval, the pump should be serviced as soon as the oil becomes noticeably discoloured.
Make sure the old oil is hot before draining it – after the pump has been running for at least 1 hour.
Refill the pump with the correct grade of oil. For the pump models fitted to the SVM 2S, the correct grade will be an ISO 68 (SAE 20) vacuum pump oil. Approximate fill volumes are:
Pump Model Amount ml/pints
PVR EM12/B 330 ml/0.7 pint
PVR EM20/B 450 ml/0.9 pint
Becker U4.20 450 ml/0.9 pint
PVR EM28/B 750 ml/1.5 pints
DO NOT OVERFILL! Fill to ¾ level on the sight glass maximum.
Use a compressed air nozzle to remove dust from pump and motor surfaces whenever the oil is changed. This is most effective when the pump is running but do not insert nozzle into moving motor fan!
Unclip the filter cap and inspect the inlet filter element. Replace if badly contaminated.
Make sure that loose dust does not fall into the inlet of the pump! If badly contaminated, remove the complete filter unit before removing the filter element.
A very fine filter is fitted inside the exhaust cavity of the vacuum pump. (Refer to pump maker’s exploded parts drawing). In heavy use, with insufficient oil changes, or with contamination in the incoming air stream this filter will become blocked. Blockage of the filter may show up in the following ways:
The filter should be replaced whenever these problems occur, or as routine maintenance at approximately 2,000 operating hours.
The illustrated parts are required for this service. Also have access to the exploded parts drawing for the appropriate pump model. Refer to pump section of this manual.
Mounted on top of the pump is a small external filter. Its purpose is to introduce a small flow of filtered air into the pump to help discharge contaminants such as water vapour and styrene vapour from the pump. In dusty atmospheres, this external filter may block. When the gas ballast filter becomes blocked the pump oil will contaminate more quickly. In most environments, the gas ballast filter should be cleaned annually. In very dusty atmospheres, more frequent cleaning may be necessary.
To clean the filter:
Remove aluminium gland nuts. Remove and inspect O-rings. Inspect internals of gland fitting and clean out accumulated resin. If necessary, drill out resin from UNDERSIDE of the fitting using the appropriate drill bit. Twisting the bit by hand will usually suffice.
Tubing gland size 10 mm (3/8”) OD tube 13 mm (1/2”) OD tube 16 mm (5/8”) OD tube 19 mm (3/4”) OD tube |
Drill bit size 8.5 mm (21/64”) 10.5 mm (13/32”) 14 mm (17/32”) 17.5 mm (11/16” |
DO NOT DRILL OUT THE TUBE STOP!
After removing hardened resin, coat all internal surfaces with liquid mould release.
Refit O-rings, replacing any damaged ones.
Replace aluminium gland nuts, but do not tighten.
Fit tube or plugs as required and hand tighten gland nuts.
Apply liquid mould release to all internal surfaces (and external surfaces if you wish).
Apply a minimum of 2 wiped on coats or as recommended by the mould release supplier.
If the PVC spatter shield underside of the lid become obscured, replace it as follows:
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