Ditch Witch JT1220 - Manual (Page 189)

Service - 188
JT1220 Mach 1 Operator’s Manual
As Needed
CMW
Check Fluid Pump Ball Valve
Check ball valve for leaks. Tighten stem
packing as needed. See your Ditch Witch
dealer for replacement packing.
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 21.84” (555 mm).
2. Drive straight forward one machine length
and check tension again.
Adjust Drive Belt Tension
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.