Volvo Penta AQUAMATIC 280 Workshop Manual page 45

Repair instructions
1
3. Install the needle bearings (1) and the spacer ring
(2) between the bearings in the lower gear and insert
the shaft in the gear.
NOTE! The needle bearings are matched in pairs and
must not be mixed up.
4. Install the upper gear wheel with its calculated
number of shims in the gear housing. Install the nee-
dle bearings with the spacer ring in between and the
lower locking ring on the shaft.
NOTE! Carefully inspect the condition of the brass
washer and replace if necessary.
42
2
5. In order to obtain the correct axial shaft clearance
there are 3 left hand threaded nuts (1) with different
steps available. Select a nut and tighten it (tightening
torque: 120 Nm (88.5 lb.ft.). Use special tool 884830
as a counter hold.
NOTE! Lubricate the treads to prevent the nut from
galling.
6. Measure the clearance between the nut and the
bearing. The axial clearance should be between 0.1–
0.5 mm (0.004–0.020"). Should it prove impossible to
obtain the correct clearance with either of the nuts,
the bearing is probably defective.
1
884830