NVE MEC 5000 - Troubleshooting; Pump Overheats; Too Much Oil Use; Pump Doesnt Turn

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MEC 5000, 6500 & 8000/P | 21www.natvac.com | 800.253.5500

Troubleshooting

MEC 5000/P

MEC 6500/P

MEC 8000/P

Pump overheats

• Nooilinpump

• Oiladjustmentsettoolean

• Rpm too fast

• Prolongedoperation

Too much oil use

• Oil adjustment set too rich

• Oilseals defective

• Crackedpumpbody

Pump doesn’t turn

•

Broken vane

• Frozen

• Pump endplate bolts too tight

• Faulty PTO or drive set up

No vacuum or pressure in tank

•

Suction valve in neutral

• Defective seal or vanes

• Pump not driven fast enough

• Check valve or suction line clogged

• Leak in tankorttings