RoadHog RH48200, Manual, Page: 23 / 63

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All 200hp RoadHogs have 2 separate drive belts. If a belt requires replacement, then both belts must be replaced at
that time.
The tension on new drive belts should be checked after the first 15 hours of operation and then every 100 hours of
operation.
RH48200, RH60200, RH72200 Drive belts tightening Instructions:
1. Shut engine down and turn engine control panel off. Press Red stop button on panel, do not turn to reset. Turn remote off
and remove remote key.
2. Remove belt covers.
3. Loosen four bolts holding idler arm weldment to chassis. Only loosen slightly to allow idler arm to slide but not deflect
enough to affect belt tension.
4.
Loosen lock nut on adjuster screw.
5. Tighten or loosen adjuster screw to adjust belt tension.
6. Check tension with Gates Sonic Tension Meter ( Model 507C ) as follows:
Connect Microphone to meter.
Press POWER to turn meter on.
Press Hz to switch readout to Hertz.
Press MEASURE. Display should change to a horizontal line.
Hold the microphone about ½ inch away from belt at the midpoint of the front span of the belt. Strike the belt with hand.
Horizontal line on meter should change to a wavy line and read out the belt natural frequency in Hertz.
Meter will not read a frequency less than 15 Hz, so belt has to be fairly tight before the meter can read the frequency.
Also, high ambient noise levels can prevent the meter from reading the frequency.
7. Repeat steps 5 and 6 until belt tension is 31-32 Hz for a new belt and 28-30 Hz for a used belt ( more than 15 hours ).
8. Torque four idler arm bolts to 75 lb.-ft.
9.
Recheck tension, adjust if necessary.
10. Start unit, engage clutch for 2-3 minutes. USE CAUTION; BELT COVERS ARE OFF!
11.
Repeat step 1 and Recheck tension, adjust if necessary.
12. Reinstall all belt covers.
Gates Tension Meter ( Model 507C ) must be used to check and set belt tension.
Failure to check and set belt tension may result in incorrect belt tension. Incorrect belt tension may cause premature belt
failure, and is not covered under warranty.
IMPORTANT
Drive Belt Maintenance ( 200hp RoadHogs )