TOHATSU BFT115A Service Manual page 115

3. Oil leak inspection
Check for oil leakage from the power trim/tilt.
Is there oil leakage?
YES – Replace the O-ring and oil seal at the leaking point (when the manual valve O-ring or piston rod
(cylinder cap) oil seal is leaking, replace it as an assembly).
NO – GO TO STEP 4.
4. Oil level inspection
Check the oil level with each rod fully extended (page 19-31).
Is the oil level within specification?
YES – GO TO STEP 5.
NO – Fill the oil to the specified level and recheck.
5. Air bleed inspection
Check for air in the system.
Is there air in the system?
YES – Bleed the air from the system (page 19-37).
NO – Faulty power trim/tilt
Repair the faulty part by referring to the "POWER TRIM/TILT QUICK
REFERENCE CHART (page 4-27).
POWER TRIM/TILT DOES NOT HOLD POSITION
1. Manual valve inspection
Check the manual valve for looseness.
Is the manual valve loose?
YES – Tighten the manual valve to the specified torque: 3.4 N·m (0.35 kgf·m, 2.5 lbf·ft)
NO – GO TO STEP 2.
2. Oil leak inspection
Check for oil leakage from the power trim/tilt.
Is there oil leakage?
YES – Replace the O-ring and oil seal at the leaking point (when the manual valve O-ring or piston rod
(cylinder cap) oil seal is leaking, replace it as an assembly).
NO – GO TO STEP 3.
3. Hydraulic pressure inspection
Check the hydraulic pressure (page 19-39).
Is the hydraulic pressure within the specification?
YES – GO TO STEP 4.
NO – Replace the motor or pump assembly and recheck.
4. Oil level inspection
Check the oil level with each rod fully extended (page 19-31).
Is the oil level within specification?
YES – GO TO STEP 5.
NO – Fill the oil to the specified level and recheck.
5. Air bleed inspection
Check for air in the system.
Is there air in the system?
YES – Bleed the air from the system (page 19-37).
NO – Faulty power trim/tilt
Repair the faulty part by referring to the "POWER TRIM/TILT QUICK
REFERENCE CHART (page 4-27).
TROUBLESHOOTING
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