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Graco B Series - User Manual

Graco B Series
20 pages
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308883
Rev. F
First choice when
quality counts.
INSTRUCTIONS–PARTS LIST
INSTRUCTIONS
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
50:1 Ratio Fire-Ballr Grease Pumps
FOR LUBRICATING PRODUCTS ONLY
8400 psi (58 MPa, 580 bar) Maximum Fluid Working Pressure
140 psi (0.97 MPa, 9.7 bar) Maximum Air Working Pressure
Model No. 239877, Series B
pail length
Model No. 239887, Series B
120-pound drum length
Model No. 239888, Series B
400-pound drum length
WARNING
This product is designed to be used only in
pumping non-corrosive and non-abrasive lubricants
and greases. Any other use can cause unsafe
operating conditions and result in component
rupture, fire, or explosion, which can cause serious
injury, including fluid injection.
Table of Contents
Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displacement Pump Service 10. . . . . . . . . . . . . . . . . . . .
Air Motor and Throat Service 12. . . . . . . . . . . . . . . . . . . .
Parts Drawing 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts List 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensional Drawings 18. . . . . . . . . . . . . . . . . . . . . . . . .
Mounting Hole Layout 18. . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warranty 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Phone Number 20. . . . . . . . . . . . . . . . . . . . . . . . . .
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
COPYRIGHT 1999, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
Model No. 239887 shown
9038B
Parts

Questions and Answers

  • J
    james75Sep 12, 2025
    What causes erratic operation in a Graco B Series Water Pump?
    • J
      Jason JonesSep 12, 2025
      Erratic pump operation can stem from several issues. Check the following: 1. Exhausted fluid supply: Refill and reprime or flush the system. 2. Worn pump seals: Replace the worn seals. 3. Damaged shovel tube: Replace the damaged shovel tube. 4. Damaged check seat: Replace the pump piston or shovel rod (or other damaged part).
  • C
    Christopher Mata Jr.Sep 13, 2025
    Why is the output low on the up stroke of my Graco Water Pump?
    • M
      melody02Sep 13, 2025
      Low output on the up stroke can be due to a worn piston seal, which requires replacement. It can also be caused by a damaged upper check seat, in which case you should replace the pump piston.
  • W
    William MillerSep 15, 2025
    Why is the output low on the down stroke of my Graco B Series?
    • A
      Ashley BrownSep 15, 2025
      If the output is low on the down stroke, it could be due to a worn fluid intake seal, which should be replaced. Another possible cause is a damaged lower check seat, in which case you should replace the shovel rod.

Graco B Series Specifications

General IconGeneral
BrandGraco
ModelB Series
CategoryWater Pump
LanguageEnglish

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