Cub Cadet Challenger 550, Service Manual

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3‐14
Periodic Maintenance
Maintenance and Adjustment of the UV
Bleeding the Cooling System.
1)Chock the rear wheel, engage the parking brake, place the shift lever in NEUTRAL or
PARK and the parking brake, place the shift lever in NEUTRAL or PARK and jack up the
front of the utility vehicle approximately 6”.
2)Remove the bleeder screw (1) on the radiator, will the radiator and when fluid begins to
come out of the bleeder screw hole, replace the bleeder screw (1). The bleeder screw can
be accessed via the front right wheel well.
3) Start the utility vehicle and let it idle.
4) Remove the second bleeder screw (2) where the radiator hose (3) connects to the
engine and let the engine run until a steady stream of fluid comes out of the bleeder screw (2) hole
indicating there are no more air pockets in the coolant system. Replace the bleeder screw.
5) Top off the radiator and replace the radiator cap. Then lower the front of the utility vehicle off the jack.
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