Ditch Witch MR90 - Manual (Page 94)

MR90 Operator’s Manual
Service - 93
As Needed
CMW
®
As Needed
Recycling Unit
Adjust Fan Belt
Adjust fan belt as needed.
1. Turn off engine and remove key.
2. Apply moderate thumb pressure to belt
between pulleys where shown.
Belt is properly tensioned when deflection is
about 1/4-3/8” (6-10 mm).
3. If needed, loosen alternator bolts (1,2) and pull
alternator out until correct tension is reached.
Adjust Pump Drive Belt
Adjust pump drive belt as needed.
1. Loosen two bolts (1,2) until pump slides freely.
2. Adjust bolt (3) to increase or decrease tension.
When washer is aligned with cutout and
dimension A (shown) is 3/4” (19 mm), tension
is correct.
3. Once tension is set, tighten bolts.
Location Task Notes
Recycling
Unit Adjust fan belt
Adjust pump drive belt
Clean hydrocyclones
Change remote batteries
Change screens
Check battery