Operator’s manual
Trailed tedder
P4-471 C P4-531 C P6-771 C
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8.
DEFECTS AND THEIR REPAIRS
9.
REPAIR AND WITHDRAWAL FROM USE
9.1. Repair
REMEMBER:
Before repair works make sure the tedder is disconnected from the tractor
.
Before repairing or assessing whether the tedder is still serviceable, it should be carefully
cleaned of dirt, mud and plant remains.
After checking nuts and bolts, proper slack in joints and gears we can assess if the machine is
still serviceable. Worn out bolts, pegs, pins, discs, tines, etc. should be replaced.
Once the tedder is repaired perform the following:
make sure that all elements are installed properly,
install the removed guards,
check whether screws and nuts are tightened,
check
proper slack in joints and in gears
,
once all the guards are installed, perform a warm-up start to make sure the repaired machine
operates properly.
9.1.1. Restarting the machine after repairs or longer storing periods
Make sure that all nuts and screws are tightened with correct torque.
Make sure that all guards are installed in place.
As the storing period is over lubricate the whole machine.
Check pressure in tires.
Pay attention not to allow the machine lose its stability and therefore protect it with
supports.
Defect
Reason
Repair
The tedder does not lift/lower
hydraulically
Damaged or dirty
components of hydraulics
Replace or clean connecting
components of the hydraulics
Damaged hydraulic unit of
the tractor
Check condition of hydraulic
unit of the tractor
Leaking cylinder
Dirty oil in hydraulic unit of
the tractor
Replace oil in hydraulic unit
of the tractor (recommended
class of cleanliness of oil
according to NAS 1638 is
minimum 9-10). Purchase
repair kit of the cylinder and
replace damaged sealings
Excessive vibration during
work
Damaged PTO shaft
Check the condition of PTO
shaft and if need be replace
Oil leak in gear
Not tight assembly
Examine tightness and check
oil level.
