Digga Mini Trencher - TROUBLESHOOTING; CHAIN; DIGGING; BOOM, DANGER BAR, FOLDBACK CRUMBER BAR

20
PM-000005 - Trencher Operators Manual - December 2012
8 TroubleshooTinG
CHAIN
TROUBLE POSSIBLE CAUSE REMEDY
Chain does not turn Quick Coupler not completely engaged Check and complete engagement
Quick Coupler failure Replace faulty coupler
An obstruction in one of the hose Remove obstruction
Hydraulic Motor failure Repair or replace. Contact DIGGA dealer
Chain drive failure Check & repair. Contact DIGGA dealer
Nose roller bearing failed Replace bearing
Digging chain too tight Loosen chain tension
Sand or spoil material build up in tooth root of sprocket Raise out of ditch, reverse chain & run to clear build up OR Loosen chain tension
DIGGING
TROUBLE POSSIBLE CAUSE REMEDY
Does not dig fast enough Worn Teeth Replace teeth if necessary
Relief valve set below specications Test and reset if necessary
Quick coupler or Hose restriction Inspect and repair as needed
Hydraulic system too hot Shut down and cool
Cutting a ditch size beyond the machine capabilities REMEMBER: Your Trencher only has the horsepower transmitted through the Hydraulic
Hoses, NOT the full horsepower of the engine
Auger/s running on the ground Raise Trencher - Keep Auger/s off ground
Chain too tight Adjust to Proper Tension
BOOM, DANGER BAR, FOLDBACK CRUMBER BAR
TROUBLE POSSIBLE CAUSE REMEDY
Trenching Boom bent Abuse Replace
Danger Bar bent Abuse Replace
Fold back CRUMBER
BAR bent
Abuse Replace
HYDRAULIC OIL
TROUBLE POSSIBLE CAUSE REMEDY
Hydraulic oil overheating Relief valve set too low on Parent Machine. Test & set as needed.
Restriction in Quick Release Coupler or hose. Inspect and repair as needed
Hydraulic Motor or hoses not size balanced to
Parent Machine
Check ows and recommendations and change if necessary. (see DIGGA Dealer)
Parent Machine not equipped with oil cooler or sufcient
sump capacity
Stop and allow to cool naturally when it gets hot.