Exmark Frontrunner Operating Manual page 40

Set neutral:
a) Remove the electrical connection from the seat safety switch, located directly
in front of the seat switch assembly.
b) The neutral adjustment must be made with the drive wheels turning. Raise the
frame and place on jack stands so that drive wheels can rotate freely.
Temporarily install a jumper wire across the terminals in the connector of the
wiring harness.
c) Start the engine.
d) Run the unit at least 5 minutes with the drive levers at full forward speed to
bring hydraulic system oil up to operating temperature.
e) To obtain the neutral position, adjust the left and right pump control rod
linkages that connect the steering control to the pump control arms until the
wheels stop, or creep slightly in reverse.
f) To adjust each linkage, loosen the jam nut next the ball joint at the upper
end of the linkage rod assembly. Then rotate the assembly using a wrench
to turn the double nuts on the assembly. See Figure 13.
g) Re-tighten the jam nut against the ball joint on each side.
h) Move the motion control levers to the reverse position. Return the motion
control levers to neutral. The wheels must stop turning (or slightly creep in
reverse).
i) Stop engine and wait for all moving parts to stop. Remove jumper wire
from wire harness connector and plug connector into seat switch.
j) Lower from jackstands.
4.2.6 Reverse Indicator Adjustment:
a) Stop engine, wait for all moving parts to stop, and remove key. Engage
parking brake.
b) Tilt seat forward.
c) Begin with either the left or right motion control lever. Move lever to the
neutral position and pull lever back until the clevis pin (on arm below pivot
shaft) contacts the end of the slot (just beginning to put pressure on
spring), See Figure 14.
FIGURE 13
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