1. Check the piston contact face of the thrust plate (1), and the thrust plate contact face of trunnion (2) for scratches       …

1. Remove the internal snap ring and check the oil seals (2) for damage. 2. Check the bearings (1) for wear. 3. If the bearings…

1. Check the engagement of the valve plate (2), (3) and the anchor pin (1). 2. Pushing the valve plate against the anchor pin, lift…

1. Check the polished face (1) of cylinder block for scoring. 2. If scored, replace cylinder block assembly. 3. Check the spring (2) for breakage.…

1. Lift the pistons gently with the retainer plate (1). 2. Check the pistons for their free movement in the cylinder block bores. 3. If…

1. Check the oil seal surface (3). 2. If the pump shaft (1) and motor shaft (2) are rough or groove, replace them.  

1. Measure free length of spring with vernier caliper. 2. If the free length is less than the allowable limit, replace.  

1. Place for in the groove to check clearance with feeler gauge. 2. If the clearance exceeds allowable limit, replace.  

1. Secure the gear with a vise. 2. Set a dial indicator (lever type) with its finger on the spline. 3. Move the shaft to…

1. Set a dial indicator (lever type) on one of the tooth faces. 2. Clamp the mating gear. 3. Measure backlash by turning the gear…