Operator's manual
Two-rotor in-line rake
DUO 680
DUO 740
- 37 -
8.
MALFUNCTIONS AND THEIR REPAIRS
Tab. 6.
Defects and their repairs
Defect
Reason
Repair
The rake is not lifted/lowered
hydraulically
Damaged or dirty components
of hydraulics
Replace or clean connecting
components of the hydraulics
Damaged hydraulics of the
tractor
Check condition of hydraulic
unit of the tractor
Cylinder is not tight
Contaminated oil in the
tractor’s hydraulics
Replace oil in the tractor’s
hydraulics (recommended oil
purity class according to NAS
1638 is minimum 9-10).
Order cylinder repair kit and
replace damaged gaskets
The rake leaves most part of
the swath
Bent or missing tines
Replace tines
Too low rotation speed
Increase rpm
Incorrect working height
Adjust working height
according to section 5.6.
“Preparing the rake for work”
Excessive vibration during
operation
Damaged PTO shaft
Check the condition of PTO
shaft and if need be replace
9.
REPAIR AND WITHDRAWAL FROM USE
9.1.
Scrapping
If the rake cannot be repaired anymore, it should be withdrawn from use
.
To do so, drain oil from intersecting axis gear and working unit and deliver it to a proper
waste treatment company. Clean the rake parts, dismantle and dispose properly of all plastic parts.
After that, the rake can be scrapped.
10.
WARRANTY CARD
TWO-ROTOR IN-LINE RAKE
The product quality has been checked and meets the required standards and regulations and is
permitted for use.
Serial number
Date of manufacture
Manufacturer’s stamp
QC signature
Date of purchase
Dealer’s stamp
Dealer’s signature