Exmark FR23KC - Manual (Page 37)

32
4.2.5 Motion control linkage adjustment
WARNING
POTENTIAL HAZARD
♦ Engine must be running and drive wheels
must be turning so motion control
adjustment can be performed.
WHAT CAN HAPPEN
♦ Contact with moving parts or hot surfaces
may cause personal injury.
HOW TO AVOID THE HAZARD
♦ Keep fingers, hands, and clothing clear of
rotating components and hot surfaces.
CAUTION
POTENTIAL HAZARD
♦ Raising the mower deck for service or
maintenance relying solely on mechanical
or hydraulic jacks could be dangerous.
WHAT CAN HAPPEN
♦ The mechanical or hydraulic jacks may
not be enough support or may
malfunction allowing the unit to fall, which
could cause injury.
HOW TO AVOID THE HAZARD
♦ DO NOT rely solely on mechanical or
hydraulic jacks for support. Use adequate
jack stands or equivalent support.
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 10.
g) Re-tighten the jam nut against the ball joint on each side.