Tennant 6500, Service Manual

Page: 240 / 354

8
4000 Series Char-Lynn Motors
Reassembly
36 Apply a light film of petroleum jelly on 88,6 mm [3.49 inch] I.D.
seal. Install seal in valve plate.
37 Align case drain hole in valve plate with case drain hole in Geroler.
Install valve plate (seal side toward Geroler) on Geroler as shown in
Figure 16.
Timing Step No. 2 — Locate slot opening in valve plate which is in
line with largest open pocket of Geroler (see Figure 16).
38 Use the following procedure for installing the valve on the valve
plate.
Timing Step No. 3 — Locate any one of the side openings of the
valve that goes through to the face of the valve. Line up this side
opening in the valve with open slot of valve plate that is in line with
largest open pocket of Geroler. Rotate valve clockwise (1/2 spIine
tooth) to engage valve with the valve drive spline, alignment reference
shown in Figure 17 (above). This procedure provides standard timing
when pressurized as shown in Figure 17.
39 Apply clean grease on balance ring assembly springs. Install
springs in 2 holes located inside bore face of valve housing (see
Figure 18).
41 Apply a light film of petroleum jelly on 82,3 mm [3.24 inch] I.D.
seal. Install seal in outside seal groove of valve housing.
42 Apply petroleum jelly on inner and outer face seals. Install seals on
balance ring as shown in Figure 19.
Important: Install face seals in the positions shown in Figure 19 or
the motor will not operate properly. Do not force or bend these face
seals. Any damage to these seals will affect the operation of the
motor.
43 Align 2 pins of balance ring with 2 spring holes in valve housing as
shown in Figure 20 . Install balance ring in valve housing.
40 Apply a light film of petroleum jelly on 8,9 mm [.35 inch] I.D. seal.
Install seal in case drain groove of valve housing.
Figure 19
Balance Ring
Pin Inner Seal Outer Seal
Valve
Housing
Seal
Figure 18
Seal
Balance Ring
Spring
Clockwise
Rotation
Counter
Clockwise
Rotation
Figure 17
Figure 20
Figure 21