Eaton Vickers V-129-C-20 User Manual

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I-3100-SReprinted 12/1/86

Single Stage Single and

Double Vane Pumps

V104, 124, 134,144 V109, 129, 139, 149

V105, 125, 135, 145 V35*, 36*, 45*, 46*

V108, 128, 138, 148 (V)VF-**-**, (V)VG-**-**

Vickers

®

Vane Pumps

Overhaul Manual

Questions and Answers:

K
Keith CookAug 17, 2025
What to do if my Eaton Water Pump is not delivering fluid?
- R
  rebecca86Aug 17, 2025
  If your Eaton Water Pump isn't delivering fluid, several issues could be the cause. First, the pump might be driven in the wrong direction; immediately reverse it to prevent seizure and check the drive rotation against the arrow on the pump body. Other potential causes include a broken drive shaft or sheared shaft key, a blocked fluid intake pipe, air leaks at the intake, a low oil level, or vanes stuck in rotor slots. Check each of these possibilities, and take corrective actions such as replacing damaged parts or adding new fluid of the proper viscosity.
M
Melissa CarterAug 20, 2025
Why is my Eaton Vickers V-129-C-20 making noise?
- R
  Robert TuckerAug 20, 2025
  If your Eaton Water Pump is making noise, it could be due to several reasons. A partially clogged intake strainer or restricted intake pipe, a defective bearing, an air leak at the pump intake piping joints or pump shaft seal, or coupling misalignment could be the cause. To troubleshoot, drain the system and clean the intake pipe, and clean or replace the strainer. Also, test for air leaks by pouring oil on joints and around the drive shaft and listen for a change in operation. If there is a defective bearing, disassemble the pump and replace it. Re-align shafts to fix coupling misalignment.
K
karen08Aug 23, 2025
How to fix air leaks at intake of Eaton Vickers V-129-C-20 Water Pump?
- P
  Paige ArmstrongAug 23, 2025
  To fix air leaks at the intake of your Eaton Water Pump, check the intake connection for air leaks and tighten it securely.
A
angelashahAug 26, 2025
What to do if the oil level is too low in Eaton Vickers V-129-C-20 Water Pump?
- M
  Meredith MeyersAug 26, 2025
  If the oil level is too low in your Eaton Water Pump, ensure that the fluid level is above the intake opening in the intake pipe.
E
Emily LarsonAug 28, 2025
How to fix Eaton Vickers V-129-C-20 Water Pump driven in wrong direction?
- C
  Christopher GarciaAug 28, 2025
  If the Eaton Water Pump is driven in the wrong direction of rotation, it must be reversed immediately to prevent seizure. Check the direction of drive rotation against the proper pump rotation as indicated by the arrow on the body.
Z
Zachary TuckerAug 31, 2025
What to do if fluid intake pipe is blocked in Eaton Water Pump?
- R
  Raymond HarrisAug 31, 2025
  If the fluid intake pipe in your Eaton Water Pump is blocked or the oil viscosity is too heavy to pick up prime, drain the complete system. Add new fluid of proper viscosity and filter the new fluid as recommended.
M
Mason MartinSep 2, 2025
How to test Eaton Water Pump for air leak at pump intake piping?
- B
  Brittany McdonaldSep 2, 2025
  To test your Eaton Water Pump for an air leak at the pump intake piping joints or pump shaft seal, pour oil on joints and around the drive shaft. Listen for a change in operation and then tighten the joints affected.
F
frenchbrianSep 5, 2025
How to fix coupling misalignment in Eaton Vickers V-129-C-20 Water Pump?
- A
  Alisha PaulSep 5, 2025
  To fix coupling misalignment in your Eaton Water Pump, re-align the shafts.
C
clambertSep 8, 2025
What if vane is stuck in rotor slots of Eaton Vickers V-129-C-20 Water Pump?
- D
  deborah45Sep 8, 2025
  If a vane or vanes are stuck in the rotor slots of your Eaton Water Pump, inspect the rotor slots for wedged chips or foreign particles and replace all damaged parts. Flush the complete system thoroughly by recommended processes and fill the system with new, clean hydraulic fluid.

Eaton Vickers V-129-C-20 Specifications

General

Model	V-129-C-20
Manufacturer	Eaton Vickers
Type	Vane Pump
Rated Speed	1800 RPM
Maximum Speed	2400 RPM
Shaft Type	Keyed
Rotation	Clockwise
Weight	45 kg
Fluid Type	Hydraulic Oil
Operating Temperature	-20°C to 80°C

Summary

Operating Characteristics

Single Pump Series - Single Stage

Performance data for single-stage single pumps based on model numbers, delivery, and horsepower.

Double Pump Series - Single Stage - Small Series Combination

Performance data for small series double pumps, split into head and shaft end.

Double Pump Series - Single Stage - Intermediate and Small Series Combination

Double Pump Series - Single Stage - Large and Small Series Combination

Double Pump Series - Single Stage - Large and Intermediate Series Combination

Overhaul

B. Disassembly

Instructions for disassembling vane pumps, including warnings and inspection points.

C. Reassembly

Steps for reassembling vane pumps, including specific assembly notes.

Cartridge Assembly and Installation

A. Cartridge Assembly

B. Installation

C. Head Screw Adjustment

Troubleshooting

Pump not delivering fluid

Identifies causes and remedies for pump failure to deliver fluid.

Pump making noise

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Preview: Eaton Vickers V Series

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