DR Power Backhoe 2008 - Manual (Page 39)

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CHAPTER 6
TROUBLESHOOTING
Most problems are easy to fix. Consult the Troubleshooting Table below for common problems and their
solutions. If you continue to experience problems, call DR Power Equipment for support.
Troubleshooting Table
S YMPTOM P OSSIBLE C AUSE
Backhoe fails to lift or
swing. ⇒ Low hydraulic fluid supply; Add fluid.
⇒ Pump not running; Start engine.
⇒ Worn control valve; Replace or repair worn valve.
⇒ Pump damaged or worn; Replace pump.
⇒ Broken hydraulic line; Check for leaks, replace line.
⇒ Faulty relief valve; Clean or replace relief valve.
⇒ Bent piston rod; repair or replace cylinder.
Backhoe lifting or
swinging too slowly. ⇒ Cold hydraulic fluid; Warm fluid with engine at idle.
⇒ Engine speed too low; Open throttle
⇒ Hydraulic fluid leaking past control valve; repair or replace worn valve.
⇒ Hydraulic fluid too heavy; Use recommended fluid.
⇒ Scored Cylinder; Replace cylinder.
⇒ Pump damaged or worn; Repair or replace pump.
⇒ Hydraulic fluid leaking past cylinder packings; Replace packings.
⇒ Pinched supply hose; Replace hose, rout to prevent kinking or
pinching.
Backhoe fails to hold
up the load.
NOTE: All loads will
settle down over a
period of time. This is
normal.
⇒ Broken hydraulic lines; Check for leaks and replace line.
⇒ Hydraulic fluid leaking past cylinder packings; Replace packings.
⇒ Hydraulic fluid leaking past control valve; repair or replace worn valve.
CENTER THE BOOM. RETRACT THE BOOM, CROWD ARM AND BUCKET. INSTALL THE BOOM HITCH
PINS AND LYNCH PINS TO LOCK THE BOOM IN PLACE. SHUT DOWN THE ENGINE, REMOVE THE
SPARK PLUG WIRE AND WAIT 5 MINUTES BEFORE PERFORMING ANY MAINTENANCE PROCEDURE
OR INSPECTION ON THE BACKHOE.