Blackmer Liquified Gas Pump RC40

Drain and relieve pressure from the pump and system as required

Remove Motor, Coupling Guards, Pump Coupling half and Pump Shaft Key

Remove Cover, Impeller and Impeller Key. The Coupling Guard retaining screws (37A) may be screwed into the Impeller to aid removal

Unscrew four setscrews from Cartridge

Insert setscrews into the two extraction holes and screw in evenly to extract the Shaft Assembly

Remove Circlip from end of Shaft Assembly. Remove Mechanical Seal Assembly. The Coupling Guard retaining screws may be screwed into the Impeller and/or Seal Assembly to aid removal

Remove Carbon Seal Seat and Lip Seal from Cartridge

Remove Circlip and press Bearings from Shaft

Remove Dust Seal – Bearing from Body

Warning: This maintenance check requires trained personnel with PPE!

Strainers cleaned regularly to avoid pump starvation

Enter the schedule for strainer cleaning depending upon the application and conditions

Check the Ball Bearings for the RC Series pumps are grease lubricated and 'sealed-for-life' design

No 'in service' lubrication is required on Ebsray's RC Series Pumps

Enter specific motor manufacturer's recommendations for motor maintenance

Sign off on the Liquified Gas Pump Maintenance

Check Impeller and Seal Zone of Body for damage or wear

Check Shaft (21) for wear, damage or run-out

Check Mechanical Seal components for wear or damage

Mechanical Seal components condition

All O-Rings replaced at every overhaul or when any disassembly is conducted

Sign off on the Liquified Gas Pump Inspection

Cover, Impeller and Impeller Key removed

Four setscrews from Cartridge unscrewed

Circlip from end of Shaft Assembly removed

Mechanical Seal Assembly removed

Carbon Seal Seat and Lip Seal from Cartridge removed

Relevant components inspected and repaired or replaced as required

All parts cleaned and any burrs removed

Impeller maintains an accurate free sliding fit on Shaft and key

O-Rings, Lip Seals and Mechanical Seal Faces lightly lubricated with a compatible good quality detergent-free light oil before assembly

NOTICE: Maintenance shall be performed by qualified technicians only, following the appropriate procedures and warnings as presented in this manual

If any abnormal condition is discovered, cease operation of pump immediately and take action to rectify the problem. Record observations from these inspections in Pump Run Log

Inspect the Pump for LPG leaks, vibration, abnormal noises, signs of overheating, discoloration, etc

Inspect Coupling Assembly for signs of wear, overheating, discoloration, etc

Check Pump differential pressure

Inspect motor for vibration, abnormal noises, signs of overheating, discoloration, etc

Sign off on the pump inspection