Instruction Manual

JT2020 Mach 1 Operator’s Manual Service - 189
As Needed
CMW
Check Track Tension and Condition
Check track tension and condition, and adjust or replace as needed. See your Ditch Witch dealer for
replacement parts.
To adjust:
1. Pump MPG into fitting (A) until dimension (B) is 21 7/8” (555 mm).
2. Drive straight forward one machine length and check tension again.
Change/Adjust Drive Belt
Change or adjust engine drive belt as needed.
To adjust:
1. Turn off engine and remove key.
2. Apply moderate thumb pressure to belt between pulleys, as shown.
3. Belt is properly tensioned when deflection is about 3/8” (10 mm).
4. If needed, loosen alternator bolts and pull alternator out until correct tension is reached.
5. Tighten alternator bolts.