VALVE GROUP 9J6458 - Caterpillar

5.0 Implement/Attachment Inspections
5.1 Blade and Trunnion Ball Joints, Stabilizer Bar, Tilt, and Angle Cylinder InspectionCheck for:
Oil leaks indicated by dirt or oil buildup around the cylinder lip seal
Oil leaks at hose connections
Damage to cylinder rods- Refer to “Hydraulic Cylinder Inspection Guidelines” for inspection procedure
Damage or wear to linkage pins and pin retainers- Refer to “Linkage Pin Inspection Guidelines” for inspection procedureCheck the following linkages for damage, wear, or missing bolts:
Blade pivot ball joint
Trunnion pivot ball joint and retainer caps
Blade stabilizer bar5.2 Blade Lift Cylinder InspectionRefer to “Hydraulic Cylinder Inspection Guidelines” for inspection procedureCheck for:
Oil leaks indicated by dirt or oil buildup around the cylinder lip seal
Oil leaks at hose connections
Damage to cylinder rods
Damage or wear to linkage pins and pin retainers- Refer to “Linkage Pin Inspection Guidelines” for inspection procedure5.3 Blade Cutting Edge and End Bit InspectionCheck for:
Loose, damaged, or missing bolts
Excessive wear on end bits and cutting edges- Refer to the Operation and Maintenance Manual for the measuring procedure to determine the maximum allowable wear5.4 Ripper InspectionCheck:
Ripper mount, ripper frame, and ripper carriage for:- Structural damage or cracks around welded joints- Damage or wear to pin bores- Loose, damaged, or missing retainer bolts
Ripper shank protector for excessive wear- If ripper shank protector is worn to close to shank, replace protector
Ripper tip for excessive wear- If ripper tip is worn to close to shank, replace tip5.5 Ripper Cylinder InspectionRefer to “Hydraulic Cylinder Inspection Guidelines” for inspection procedureCheck for:
Oil leaks indicated by dirt or oil buildup around the cylinder lip seal
Oil leaks at hose connections
Damage to cylinder rods
Damage or wear to linkage pins and pin retainers- Refer to “Linkage Pin Inspection Guidelines” for inspection procedurePerformance Inspection
Hydraulic Performance Checks
Cylinder Speed Tests
Table 8
Status(1) Description Specification Actual Comments
Bulldozer Tilt Cylinder Speed Test
Type of Blade
Full Tilt Right to Full Tilt Left
Full Tilt Left to Full Tilt Right
Bulldozer Lift Cylinder Speed Test
Ground to Full Up)
Full Up to Ground (Quick Drop
Pause at Ground (Quick Drop)
Ripper Cylinders Speed Test
Full Down to Full Up
Full Shank In to Full Shank Out
(1) N = Normal, M = Monitor, A = Action, Blank = Not ApplicableCylinder Drift Tests
Table 9
Status(1) Description Specification Actual Comments
Bulldozer Lift Cylinders Drift Test
Bulldozer Tilt Cylinders Drift Test
Ripper Lift Cylinders Drift Test
Ripper Tip Cylinders Drift Test
(1) N = Normal, M = Monitor, A = Action, Blank = Not ApplicableSteering Turn Diameter Check
Table 10
Status(1) Description Specification Actual Comments
Full Steer Left
Full Steer Right
(1) N = Normal, M = Monitor, A = Action, Blank = Not Applicable