Toro Workman 3000 Series Service Manual page 225

15.Install the piston rings. Each piston ring has different
shape. Make sure they are installed in the proper posi­
tion and with the ring gaps in the directions as illustrated
(Fig. 90).
16. Insert the piston and connecting rod assembly into
the cylinder block using a ring compressor and a
Workman 3300-D/4300-D
wooden block. Make sure the arrow mark on top of the
piston is facing toward the front of the engine.
17. Install the connecting rod bearings and end caps.
Make sure the notches on the bearings and connecting
rod are aligned. Tighten the end cap retaining bolts to a
torque of 3.2 - 3.5 KgM ( 23 - 25 ft-lb).
Figure 90
Page 4 - 75 Liquid Cooled Diesel Engine