Final Assembly - Yanmar 4LHA-HTP Operation Manual

Chapter 7 Reduction and Reversing Gear
5. Reassembly

Final Assembly

INPUT SHAFT SEAL
1. Push new seal onto special mandrel. Ensure seal will be
positioned with lip of seal facing inward.
Drive seal uniformly into bore of housing to the point that it
is countersunk 0.040 in. (1 mm) with reference to housing
surface.
2. Coat lips of seals on input and output shafts with ATF.
3. - Apply a thin layer of Loctite 515 Sealer to machined sur-
faces on housing halves. Reinstall input half of housing.
Ensure locator pins are properly positioned.
a - Locator Pins
b - Machined Surface
4. Install bolts and lockwashers and torque to 49N-im(5kgf-m)
5. Double check to ensure that there is no shaft clearance on
all three shafts. Refer back to previous steps if necessary,
and use dial indicator.
6. Remove intermediate shaft hex plugs. Apply a drop of
Loctite Type "A" to threads and reinstall in housing.
Tighten securely.
7-2-38
4LHA Series