Exmark FR20KC Manual Do Utilizador

32 

4.2.5 

Motion control linkage adjustment 

 

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.

 

 

 

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.