Exmark FR23KC Adjustments, Service Interval: 500 hrs, Spring Tensioned - No adjustment necessary

4.1.23Wheel Hub – lock nut torque specification

Service Interval: 500 hrs

When tightening the lock nut on the wheel motor tapered shaft:

a)Torque the lock nut to 125 ft-lbs (169 N-m). NOTE: Do not use antisieze on wheel hub.

4.1.24Fuel Tank – mounting hardware specification

When installing the nuts on the fuel tank studs, fully tighten the nyloc nut and back off 1/2 turn. This allows for normal fuel tank expansion and contraction with changes in temperature and fuel levels.

4.1.25Thread locking adhesives such as “Loctite 242” or “Fel-Pro, Pro-Lock Nut Type” are used on the following fasteners:

a)Pump drive sheave set screws.

b)Line shaft sheave setscrews.

c)Square head setscrews on Hydro pump control arms.

d)Sheave retaining bolt in the end of engine crankshaft.

e)Caster wheel spacer nuts.

f)Fuel tank bulkhead fitting nuts.

g)Motion control tab retaining bolt.

4.1.26Dielectric grease is used on blade type electrical connections to prevent corrosion and loss of contact.

4.2 ADJUSTMENTS

IMPORTANT: Disengage PTO, shut off engine, wait for all moving parts to stop, engage parking brake, and remove key before servicing, cleaning, or making any adjustments to the unit.

4.2.1Pump Drive Belt Tension.

Spring Tensioned - No adjustment necessary.

4.2.2Pump Drive Belt Replacement.

a)Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake.

b)Remove pump drive belt.

c)Route new belt onto sheaves as shown in the decal located on the right hand side of the left hood support. See Figure 6.

FIGURE 6

4.2.3Park Brake Adjustment.

Check to make sure each brake is adjusted properly.

a)Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake.

b)Tilt seat forward and raise hood.

c)Pull the brake lever up into the engaged position.

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