Pump Doesn't Turn; No Vacuum Or Pressure In Tank; Pump Rebuilding - National Vacuum Equipment WPT 480/P Owner's Manual And Operating Instructions

Pump doesn't turn

No vacuum or pressure in tank

Pump Rebuilding

WPT 480/P
WPT 600/P
WPT 720/P
Please read these instructions completely before
attempting repair.
22 | WPT Series
• Cracked pump body
•
Broken vane
•
Frozen
•
Pump endplate bolts too tight
•
Faulty PTO or drive set up
•
Suction valve in neutral
•
Defective seal or vanes
•
Pump not driven fast enough
•
Check valve or suction line clogged
•
Leak in tank or fittings
Complete rebuild
www.natvac.com | 800.253.5500