Maintenance: Operating Instructions

The First Steps

  • Place your pump on a firm, level foundation above the source of liquid. This is necessary in order to check proper valve operation and pump performance
  • Leave sufficient space around the pump for future servicing Best pump operation is achieved by locating the pump as close as possible to the liquid source
  • Important! Consult your owners manual for your specific Mud Sucker model's priming capabilities
  • Do not exceed static discharge head abilities of the pumping unit. Contact your Mud Sucker dealer for detailed information or our technical support help-line at 1-888-829-2783 (US and Canada) or +1-201-445-2882 worldwide

Starting Your Diaphragm Pump

  • Follow the motor or engine manufacturer's instructions carefully that shipped with your pump
  • The pump gear box, engine crankcase, and engine gear box are filled to the proper level at the factory. However, check oil levels before starting
  • Your diaphragm pump has been designed to prime itself in a few minutes
  • High suction lifts will require additional time and will reduce the performance of the pump
  • In order to facilitate priming at high suction lifts, it may be advantageous to stop the pump after a few minutes of operation and fill the pump body with liquid
  • To do this, remove the discharge ball valve and cover and then start the pump. Should you have difficulty, refer to the trouble shooting section

Using Your Pump

  • Under normal conditions at sea level, your Mud Sucker diaphragm pump is capable of handling water up to a 20 ft. suction lift
  • Your pump will operate best with some pressure on the discharge side
  • If operating with the discharge below the pump, the discharge hose can be carried over a barrel or sawhorse
  • Should the pulsating effect of the pump become objectionable, it may be that air chambers are required
  • If your pump was supplied with air chambers it may be that the air chambers have become waterlogged
  • Drain the excess liquid from the chambers. Tighten all plugs securely after draining

Pump Hose Connections

  • Connections at the easily accessible suction port should be made with strongly reinforced suction hose (see genuine Wastecorp Mud Sucker hoses)
  • This type of hose will not collapse during operation
  • Collapsible hose may be used on the discharge side
  • New hose washers should be used at the couplings to prevent trouble-causing air leaks.
  • All hoses should be independently supported to eliminate excessive strain on the pump
  • Make sure that the hose does not rest on sharp edges of boards or stones.

Pump Piping

  • All piping, especially the suction line, should be as short as possible with the fewest elbows to reduce friction loss
  • Installations with long pipe lines or when handling hot liquids, require expansion and contraction relief provisions and adequate support to eliminate severe strains on the pump
  • Suction and discharge hose should be of the nominal pipe size of the pump connections
  • It is important that suction piping should continuously rise to the pump to avoid air pockets
  • Gate valves should not be used on the discharge side for flow control
  • Capacity may be altered by pump speed (engine and variable speed drives only)

Pump Strainer Advisable

  • Protect your Mud-Sucker investment; use a strainer.
  • Strainers are attached to the suction line to prevent stones and foreign debris from clogging the pump
  • A large overall straining area is necessary and should be kept clear of debris.
  • Keep the strainer from working into the sediment by suspending it from a rope.
  • If you do not have a strainer, your Wastecorp Mud Sucker diaphragm pump dealer can supply one in the correct size

Pump Controls

  • When there is little liquid to pump, the motor speed may be reduced if your pump is equipped with a variable speed drive; or V belt drive ratio to be altered.
  • If your pump is engine driven, throttle down the engine on shallow lifts or where full power is not required for efficient pumping
  • It is recommended that the pump operate between 48 and 60 strokes per minute for efficient lubrication and cooling of the engine