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Before using this equipment,
study and understand entire
Owner's Manual.
38 Special Pump
HP38SM Skid Mounted
38 Special Pump
EZG Manufacturing
1-800-417-9272
Owner's Manual
HP38 Trailer Mounted
HP38SS Skid Steer
Serial Number __________________
EZG Manufacturing
405 Watertown Road
Waterford, Ohio 45786
(740) 749-3512 or 1-800-417-9272
Fax (740) 962-2037
www.ezgmfg.com
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Table of Contents
Related Manuals for EZG 38 Special Pump
Summary of Contents for EZG 38 Special Pump
- Page 1 Serial Number __________________ Before using this equipment, study and understand entire Owner’s Manual. 38 Special Pump Owner's Manual HP38 Trailer Mounted HP38SM Skid Mounted HP38SS Skid Steer EZG Manufacturing 405 Watertown Road 38 Special Pump Waterford, Ohio 45786 EZG Manufacturing...
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Page 2: Table Of Contents
About This Manual ..............................4 Safety Information ..............................4 Safety Precautions..............................5 Proposition 65 Warning..............................7 Controls & Switches ..............................8 Towing..................................10 Pre-Operation Checks..............................11 Operations................................20 Maintenance ................................21 Rotor and Stator Pump Adjustments ........................25 Rotor-Stator Replacement............................26 Warranty .................................27 Registration................................28 EZG Manufacturing 1-800-417-9272 www.ezgmfg.com Rev000 5/24/2022... -
Page 3: Introduction
INTRODUCTION The 38 Special Pump is a self-contained, portable, robust machine built to deliver grout, mortar, or concrete on the job site. The HP38SS model is ruggedly built and can be transported via skid steer. The HP38SS is powered utilizing the skid steer hydraulics. -
Page 4: General Information
The information in this document is subject to change without any prior notice. ABOUT THIS MANUAL This manual is provided with the 38 Special Pump to inform the equipment owner/operator how to safely operate the machine and become aware of hazards. It also contains important information regarding set up, operation, maintenance, and repair procedures. -
Page 5: Safety Precautions
The use of PPE is critical to safe operation and well-being of the operator. The following PPE and information (this list is not all-inclusive) should be used in the safe operation of the 38 Special Pump: • Jewelry removed (especially necklaces and rings) •... - Page 6 • The 38 Special Pump is supplied with a 2-5/16" ball hitch connection. Verify correct hitch before connecting to the HP38. •...
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Page 7: Proposition 65 Warning
• The 38 Special Pump must be stable before operating the machine. Level the machine if placed on a slope or uneven terrain. Failure to comply may result in personal injury or equipment damage. California - Proposition 65 Warning... -
Page 8: Controls & Switches
This is used to assist grading the material through the grate. Do not operate with engine stopped. Operating the vibrator motor with the engine off will deplete the battery. EZG Manufacturing 1-800-417-9272 www.ezgmfg.com... - Page 9 Move the lever to the right to operate the choke “ON”, left to turn “OFF” Engine Throttle lever To increase engine speed slide the lever to the left. To decrease slide the lever to the right. EZG Manufacturing 1-800-417-9272 www.ezgmfg.com...
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Page 10: Towing
The unit should be leveled using the tongue jack prior to operation of the engine. A slight rise from tongue to pump is acceptable to help with draining the hopper. EZG Manufacturing 1-800-417-9272 www.ezgmfg.com... -
Page 11: Pre-Operation Checks
Pay attention to the engine exhaust flow toward the right side of the engine enclosure as it will be hot and contain exhaust fumes. Prior to operation ALL fluid levels should be checked and be in good order. EZG Manufacturing 1-800-417-9272 www.ezgmfg.com... - Page 12 Hydraulic fluid Hydraulic oil level is checked though the sight tube from the outside of the machine. Filling access is on top of the enclosure located to the rear of the left side EZG Manufacturing 1-800-417-9272 www.ezgmfg.com Rev000...
- Page 13 Warning - Do not drain fuel system completely of fuel. Danger – Do not fill while the engine is running. Danger – Do not fill while the engine is hot. View shown with 8 gallon tank. 16 gallon tank available. EZG Manufacturing 1-800-417-9272 www.ezgmfg.com Rev000...
- Page 14 Ensure that the vent and the fan are clear of all obstructions. The cooling fan exhaust is diverted through the top of the enclosure via a heat shroud. Heat Shield Keep this area clear of dirt and debris. EZG Manufacturing 1-800-417-9272 www.ezgmfg.com Rev000...
- Page 15 Check that the drive shaft is correctly engaged into the UJ and that the socket is engaged over the head of the rotor. Check that the fasteners that hold the hydraulic motor to its mounting plate and the plate to the hopper are secure. EZG Manufacturing 1-800-417-9272 www.ezgmfg.com Rev000...
- Page 16 Check that the vibrator grate is in the lowered position, resting on its rubber “bumper” feet. Shown with optional vibrator motor. Rubber / Poly bumper shown. Ensure that ALL fasteners are present, in good condition and tightened securely prior to any operation. EZG Manufacturing 1-800-417-9272 www.ezgmfg.com Rev000...
- Page 17 Do not overtighten adjustment bolts. If the engine is noticed “bogging down” during the adjustment procedure, then the rotor-stator is becoming too tight to operate efficiently. If bogging down is noticed during the adjustment procedure or 150 psi cannot be achieved the rotor-stator needs to be replaced. EZG Manufacturing 1-800-417-9272 www.ezgmfg.com Rev000...
- Page 18 Step 2: Turn off engine. Step 3: Open ball valve on test rig to drain. Remove expansion plug to drain hopper. Step 4: Remove test rig from outlet. Step 5: Replace expansion plug in hopper. EZG Manufacturing 1-800-417-9272 www.ezgmfg.com Rev000...
- Page 19 When shutting down, move the switch on the pump control panel to the middle “off” position then slow the engine to idle using the throttle lever sliding to the right. Leave the engine idle for a few minutes prior to turning off using the ignition key set to the “off” position. EZG Manufacturing 1-800-417-9272 www.ezgmfg.com...
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Page 20: Operations
• disassembled by removing the clamping nuts facilitating easier clean up. The 38 Special Pump is supplied with an adjustable stator. The sleeve can be tightened to bring • working pressure back to normal range as the stator wears. This should be done evenly along the length and in small increments. -
Page 21: Maintenance
MAINTENANCE The 38 Special Pump units are very simple to maintain. The biggest part of maintenance on the unit is cleaning after a job. Failure to clean properly after use will damage seals, paint, and moving parts due to material build up. This causes wear and likely hinder operation and startup next time. - Page 22 Apply some fresh grease to the inner lip and back face of the new seal, then place it into the • counter bore in the motor mounting plate. Apply some grease to the outside of the shaft of the motor. EZG Manufacturing 1-800-417-9272 www.ezgmfg.com Rev000...
- Page 23 Note - The seal needs to be replaced once the seal no longer holds grease, is broken, cracked, or worn to the same diameter as the drive, indicated by a flat appearance instead of deformed when fully greased. Engine Maintenance – Please refer to manufacturer’s data for servicing EZG Manufacturing 1-800-417-9272 www.ezgmfg.com Rev000...
- Page 24 Failure to maintain a full state of charge will render the battery depleted / “Flat” when next required. Float chargers / maintainers are available at most automotive stores or online retailers. EZG Manufacturing 1-800-417-9272 www.ezgmfg.com Rev000...
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Page 25: Rotor And Stator Pump Adjustments
The life of a rotor stator combo will need to be determined on a job-by-job basis, being dependent upon the coarseness of the mix and the amount of pressure required. EZG Manufacturing 1-800-417-9272 www.ezgmfg.com... -
Page 26: Rotor-Stator Replacement
NOTE – DO NOT operate the rotor-stator without either soapy water or material in the pumping hopper. Doing so can cause premature wear and/or damage to the rotor-stator. EZG Manufacturing 1-800-417-9272 www.ezgmfg.com... -
Page 27: Warranty
EZG reserves the choice to repair or replace. 2. If EZG chooses to replace the part, it will be at no cost to the customer and will be made available to the EZG Distributor, Dealer, or Rental Center from whom the End User purchased the product. -
Page 28: Registration
ARE YOU SATISFIED WITH THE CUSTOMER SERVICE YOU RECEIVED? Explain: WHAT OTHER EZ PRODUCTS DO YOU OWN? WOULD YOU LIKE TO BE FEATURED IN OUR NEWSLETTER? If yes, where can we reach you and what is the best ti Commen EZG Manufacturing 1-800-417-9272 www.ezgmfg.com Rev000 5/24/2022...