Service - 94
ST37x Operator’s Manual
As Needed
Trencher
Check Digging Chain Rollers, Sidebars, Pins, and Bushings
Perform periodic visual inspections of digging chain.
Check for wear on rollers (1) and sidebars (2). Check pins
and bushing wear by measuring distance (3) between
chain pins and comparing it to new chain.
Check Digging Chain Teeth and Bits
Inspect digging chain teeth for wear as needed. Replace worn teeth with new Ditch Witch
®
teeth. Each unit
is equipped with a standard tooth configuration. When replacing teeth, maintain original tooth pattern.
Depending on soil conditions and type of chain, a different configuration might produce better results.
Contact your authorized Ditch Witch dealer for more information about digging teeth patterns.
Alligator chain bits, like teeth, wear out. When tungsten cap or insert is gone, bit will wear quickly. Replace
it before bit adapter is damaged.
Check Trencher Headshaft Sprocket Bolts
Check tightness of headshaft sprocket bolts as needed.
Tighten lubricated bolts to 85 ft•lb (115 N•m)
NOTICE:
•
If sidebars are bending or getting loose on chain
pins, use chain spacers to join sidebars.
•
Replace worn or broken chains.
•
Replace sprockets when new chain is installed.
t05om061c.eps
2
1
3
t05om060c
.
eps
Summary of Contents for ST37x
Page 1: ...ST37x Operator s Manual 053 2977 Issue 1 0 Original Instruction...
Page 19: ...Safety 18 ST37x Operator s Manual Machine Safety Alerts...
Page 37: ...Controls 36 ST37x Operator s Manual Engine Compartment...
Page 45: ...Prepare 44 ST37x Operator s Manual Check Supplies and Prepare Equipment...
Page 46: ...ST37x Operator s Manual Drive 45 Drive Chapter Contents Start Unit 46 Drive 46 Shut Down 48...
Page 57: ...Transport 56 ST37x Operator s Manual Retrieve...
Page 63: ...Trench 62 ST37x Operator s Manual Trench...
Page 97: ...Service 96 ST37x Operator s Manual As Needed...
Page 101: ...Specifications 100 ST37x Operator s Manual ST37x...
Page 104: ......
Page 105: ......
Page 106: ...ST37x Operator s Manual Service Record 105 Service Record Service Performed Date Hours...
Page 107: ...Service Record 106 ST37x Operator s Manual Service Performed Date Hours...
Page 108: ...ST37x Operator s Manual Appendix 107 Appendix Chapter Contents Engine Diagnostic Codes...