Tennant ATLV 4300 Service Manual page 137

2000 Series Disc Valve Motors
Reassembly
40 Install tie bolts. If you use alignment Studs, install 2 bolts opposite
the studs. Finger tighten the bolts. Remove the alignment studs and
replace with the two remaining bolts. Torque all four bolts alternately
to 50 Nm [450 lb-in].
41 Install seal on case drain plug then install in valve housing. Torque
to 6 Nm [50 lb-in.]
Wheel Motor
Bearing Housing
Castle Nut
On wheel motors, a different bearing housing is used, see Figure 19.
Other than this the parts are the same as the standard motor and the
same disassembly and reassembly procedures apply.
Wheel Motor
with Seal Guard
Installation of Seal Guard:
After completing assembly of the shaft and bearing assembly into the
bearing housing, press the seal guard onto the shaft with a tool that
will provide an even push over the seal. This tool must bottom out
against the bearing housing and provide a 4,5 mm [.177 inch] stop for
the seal guard.
Shaft Seal
Exclusion Seal
Figure 19
Shaft and Bearing
Assembly
Back-up Washer
Seal
Housing with Seal Guard Groove
Exclusion Seal
Seal Guard
Case Drain Plug with Seal
Figure 18
Shaft Face Seal
4,40[.177]
Tie Bolts
7