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BINDER: Agricultural Equipment
FILE UNDER: Agricultural Tractors
ISSUE NUMBER:
REPLACES:
SERIES:
MODELS AFFECTED:
GROUP - SUBGROUP -
DEFECT:
SUBJECT:
DESCRIPTION
The information in the service bulletin will provide information on how to maintain hydraulic couplers properly.
Unnecessary hydraulic coupler replacement
People replace the hydraulic couplers unnecessarily for the following issues:
• Leaks due to contamination
NOTE: See the section "Hydraulic coupler oil leakage:".
• Hard to connect or disconnect
NOTE: See the section "A Jammed latching ball can make the hydraulic coupler difficult to connect or disconnect."
• The hose ends eject from the hydraulic coupler
NOTE: See the section "Male implement ends pop out of the hydraulic coupler".
Incorrect use and incorrect maintenance of a hydraulic coupler
Incorrect use and incorrect maintenance of the hydraulic coupler can shorten the service life of the hydraulic cou-
pler. The following are examples of incorrect use or incorrect maintenance that can cause a hydraulic coupler fail-
ure:
• Someone who connects the hydraulic coupler where contamination such as dirt and debris is present
• Someone who connects the hydraulic coupler to a male hydraulic coupler that has damaged components, dirty
components, or worn components
• The use of excessive force to disconnect the hydraulic coupler
STEIGER®
QuadTrac® 470 , QuadTrac® 540 , QuadTrac® 580 ,
QuadTrac® 620 , RowTrac™ 350 , RowTrac™ 370 ,
RowTrac™ 400 , RowTrac™ 420 , RowTrac™ 450 ,
RowTrac™ 470 , RowTrac™ 500 , Steiger® 350 , Steiger®
370 , Steiger® 400 , Steiger® 420 , Steiger® 450 , Steiger®
450 QT , Steiger® 470 , Steiger® 500 , Steiger® 500 QT ,
Steiger® 540 , Steiger® 550 , Steiger® 550 QT , Steiger®
580 , Steiger® 600 , Steiger® 600 QT , Steiger® 620
35 204
UNNECESSARY REPLACEMENT OF THE HYDRAULIC
COUPLERS – INCORRECT USE OR INCORRECT
MAINTENANCE OF THE HYDRAULIC COUPLERS
1
Service Bulletin
PAGE:1 / 6
DATE: 27 July 2015
ISSUED BY: Quality & Product Support
BULLETIN NUMBER: 2015 - 093 CIH N SB
27 July 2015 F29766C-F29766C EN
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Related Manuals for Case HI STEIGER Series
Summary of Contents for Case HI STEIGER Series
- Page 1 Service Bulletin BINDER: Agricultural Equipment PAGE:1 / 6 FILE UNDER: Agricultural Tractors DATE: 27 July 2015 ISSUE NUMBER: ISSUED BY: Quality & Product Support BULLETIN NUMBER: 2015 - 093 CIH N SB REPLACES: SERIES: STEIGER® MODELS AFFECTED: QuadTrac® 470 , QuadTrac® 540 , QuadTrac® 580 , QuadTrac®...
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Page 2: Unit Preparation
• The Implement hoses are too short. Short implement hoses can cause stress on the hydraulic coupler when the operator turns the tractor. • The failure to disconnect the implement coupler before the operator drives away from the implement. ACTION PRODUCTION Not applicable SERVICE... -
Page 3: Troubleshooting
Usage See the information that follows to correctly connect or disconnect the hydraulic coupler: • Relieve the hydraulic pressure before you connect or disconnect the hydraulic coupler. This practice pre- vents damage to components of the hydraulic coupler such as the seal, the valve, and the locking balls. •... - Page 4 6. If after you perform the cleaning process three times and the difficulty still occurs, replace the hydraulic cou- pler. Hydraulic coupler oil leakage: In many cases, you can fix a leaking hydraulic coupler by cleaning the hydraulic coupler, flushing the hydraulic coupler, or installing a seal kit.
- Page 5 • Internal hydraulic coupler leakage into the case drain line of the hydraulic coupler • Too much oil flow through the implement connection of the case drain line Worn implement male couplers 1. Inspect the implement male coupler tips. 2. If worn or there is damage, replace. Internal hydraulic coupler leakage into the case drain line of the hydraulic coupler If one of the remote couplers leaks, the remote cou-...
- Page 6 ○ If there is not an internal leak in the hydraulic cou- plers and you have a hydraulic motor connected with a case drain, perform one of the following tasks: Use a separate case drain line for the implement di- rectly back to the hydraulic tank.
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