- Motor Grader:
- 120M (S/N: B9C1-UP; B9N1-UP; B9W1-UP; D9W1-UP)
- 12M (S/N: B9F1-UP; B9R1-UP)
- 140MSeries 2 (S/N: M9D1-UP; M9J1-UP)
- 140M (S/N: B9D1-UP; B9G1-UP; D9G1-UP; B9M1-UP)
- 14M (S/N: B9J1-UP)
- 160MSeries 2 (S/N: M9E1-UP; M9K1-UP)
- 160M (S/N: B9E1-UP; B9L1-UP; B9T1-UP; D9T1-UP)
- 16M (S/N: B9H1-UP)
- 24M (S/N: B9K1-UP)
ReferenceTroubleshooting, RENR8459, "Hydraulic and Steering System".
ReferenceTroubleshooting, RENR8469, "Hydraulic and Steering System".
ReferenceTroubleshooting, KENR8888, "Hydraulic and Steering System".
ReferenceTroubleshooting, RENR8497, "Hydraulic and Steering System".
ReferenceTroubleshooting, RENR8484, "Hydraulic and Steering System".
The referenced manuals have been updated to include the flushing procedure provided in this SMAG.
In the event of the implement cylinder drift, perform the following troubleshooting procedure in order to counter act the possible oil contamination. Contaminated oil can lead to incomplete seating of implement check and relief valves resulting in internal leaks and implement cylinder drift:
- Flush hydraulic oil through the affected circuit by operating the implement at high idle for 30 to 60 seconds.
- Cycle the implement a few times during the exercise to dislodge and push any contaminants or particles away from relief valves. Make sure that the implement cylinders reach full extension and retraction during each cycle. The exercise should push particles and contaminants into the hydraulic oil filtration system.
Troubleshooting procedure for the implement check and relief valve group is adaptable to M and M Series 2 Motor Graders that are listed above.