ADJUSTMENTS 8
43
8.4
NEUTRAL ADJUSTMENT ___________________________________________________
Neutral adjustment can only be made at the drive pump.
The Neutral adjustment is preset at the factory on all new
mowers and replacement pumps. Further adjustment is
not required unless the pump has been disassembled for
repair or service.
To adjust Neutral:
1.
Disconnect traction pedal linkage from pump.
2.
Place mower securely on jack stands so
All
wheels
are raised off ground.
3.
Check that tow valve
(H)
is closed
4.
Engage parking brake and set mow switch to OFF.
Make sure Neutral switch at traction pedal is closed.
(Figure 8D -
M
). Distance between the sensing
portion of switch and metal pointer
(M)
must be
between 1/16 and 1/8 in. (0.15 and 0.3 cm).
5.
Loosen screws
(G)
holding pump lever bracket just
enough so it can be moved. Start engine, disengage
parking brake, and observe wheels. Adjust bracket
(F)
in slotted holes until wheels do not turn. Turn off
engine and tighten bracket in place.
6.
Connect traction linkage. When connecting linkage
at traction pedal make sure pointer on traction pedal
bracket is centered over Neutral switch (
M
-
Figure
8D
).
7.
Start engine and check operation of traction pedal.
Wheels must not turn when pedal returns to Neutral
and lamp 5 on controller should light, see Section
9.2.
Figure 8C
8.5
FORWARD / REVERSE SPEED ______________________________________________
Forward and reverse speeds are adjusted at the traction
pedal. Set forward speed before adjusting reverse.
To adjust forward speed:
1.
Make sure drive pump has been set to Neutral and
engine throttle is adjusted correctly. Rotate the
traction pedal mow speed stop to the transport
position.
2.
Start engine and check forward travel speed with
engine at full throttle. Forward transport speed
should measure 12 mph (19.3 kph).
3.
Stop engine. To adjust forward speed, disconnect
eye bolt
(K)
from pedal and loosen jam nut. Turn
eye bolt in to reduce speed, out to increase speed.
Tighten jam nut to hold adjustment in place and
connect eye bolt.
4.
With traction pedal in Neutral, check position of
Neutral switch
(J)
. Adjust switch up or down so
pointer
(M)
on traction pedal bracket is centered
over it. When adjusted correctly lamp 5 on controller
will light when ignition switch is turned to on.
5.
Start engine and check forward speed. Repeat
procedure until 12 mph (19.3 kph) forward transport
speed is attained.
To adjust reverse speed:
1.
Set forward speed.
2.
Start engine and check reverse travel speed with
engine at full throttle. Reverse speed should
measure 5 mph (8 kph).
3.
Stop engine. To adjust reverse speed, loosen nut on
reverse travel stop bolt
(L)
. Slide bolt forward in
slotted hole to increase speed, back to reduce
speed. Tighten nut to hold adjustment in place.
4.
Start engine and check speed. Repeat procedure
until 5 mph (8 kph) reverse speed is attained.
Figure 8D
F
H
G
LF014
J
K
L
M
