Drive
Shaft
Lubrication
Lubricate the drive shaft slip joint every
8
operating
hours. Failure to maintain proper lubrication could
result in damage
to
U-joints, gearbox and drive
shaft.
Lower mower to ground, disconnect drive shaft and
apply a bead of grease all around the male half
where
it
meets the female half. Slide shaft in and
out several times
to
distribute grease.
Blade Installation
(figure 12)
The words "This Side Down" are stamped on the
blade. Make sure this side of the blade is placed
toward the ground. Install blade
(5)
into crossbar
(1).
Insert blade pin
(2)
from top then rotate blade
retainer
(4)
until half moon is away from the blade
pin. Tighten blade retainer
bolt
(3)
to
20
ft-lbs. Do
not over-tighten. Rotate crossbar and repeat
procedure. Replace blade access cover.
BLADE SERVICING
Inspect blades for condition and proper installation
each time before operation. Replace any blade that
is
bent, excessively nicked, worn or has any other
damage. Small nicks can be ground out when
sharpening.
Blade Removal
(figure
12)
Make certain ail movement
of
cutter compo-
nents has stopped before opening blade access
cover.
Open blade access cover, reach through and align
one end of the crossbar with the hole. Use a block
of wood
to
hold blade carrier and loosen blade
retainer
bolt
rotate retainer
(4)
until half
is
aligned with blade pin
(2)
and remove blade pin.
Remove blade
(5).
2
TORQUE BOLT
(3)
TO
20
1.
Crossbar
2.
Blade
3.
Blade
bolt
4.
Blade retainer
5.
Blade
Figure 12.
Blade Assembly
Your dealer can supply genuine replacement
blades. Substltute blades may not meet original
equipment specifications and may be
dangerous.
Blade Sharpening
(figure
Remove blades.
Always sharpen both blades at the same time to
maintain balance. Follow original sharpening
pattern.
Do
not sharpen blade
to
a razor edge.
Leave a
1/16"
blunt edge.
Do
not sharpen back
side.
FOLLOW ORIGINAL
PATTERN
I
\ \ ,
MAINTAIN CORNER
Figure 13.
Blade Sharpening
Belt Replacement
(figure
One
of
the major causes of belt failure is improper
installation. Before a new belt is installed, check
pulley shafts and bearings for wear. Check pulley
grooves for cleanliness. Make sure spindles turn
freely and without wobble.
If
grooves require
cleaning, moisten a cloth with a non-flammable,
non-toxic degreasing agent or commercial detergent
and water.
F-7756 (1 0-89)
19
Summary of Contents for RM752A
Page 1: ......
Page 2: ......
Page 14: ...NOTES 12 F 7756 10 89 ...
Page 29: ...F 7756 10 89 NOTES 27 ...
Page 34: ...MOUNTING FRAME ASSEMBLY i 32 F 7756 10 89 ...
Page 40: ......
