Ritchie 822g Technical Document

Instruction Manual
& Operating Guide
Mounted Harrow
Model 822g

Contents
Mounted Harrow - Model 822g
Pages
Safety Notes and Warnings ...................................................... 3
Introduction and Intended Use / Specifications ......................... 4
Operating in the Field ............................................................... 4
Attaching to Tractor ................................................................. 5
Settings .................................................................................... 6
Cleaning .................................................................................. 7
Spare Parts ............................................................................... 7

3
Safety Notes and Warnings
zAllow only experienced tractor drivers to operate this machine.
zThe machine is recommended for use with a 4 wheel drive tractor.
zOnly operate this machine from the tractor seat (work station).
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zOperate only when bystanders are at a safe distance away.
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zWhen unhitching the machine from the 3 point linkage, ensure that the machine is
set down on a firm and level area.
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zCare must be taken on steep ground when lifting the machine out of work.
zLower the implement to the ground and switch off the tractor engine before
approaching the working zone of the implement.
zBefore attempting any maintenance or making any adjustments, turn off the
tractor engine and remove keys.

4
Operating in the field
zUse the machine when conditions allow, i.e. Not too wet or too dry.
zDuring work, if the implement is to be used as a Grassland Harrow - use the tractor
lift to give 5 to 7.5 centimetres (2 to 3 inches) clearance between framework and
ground thus gaining full use of the mat. Allowing the frame to drag on the ground
could result in damage to the implement.
If using the implement to level out gravel areas, manéges, equestrian arenas etc.
lower the frame to within 2.5 to 5 centimetres (1 to 2 inches) clear of the ground to
allow the frame to work as a levelling bar..
zWorking speed 3 - 4.5 mph (5 - 7 kph).
Introduction and Intended Use
The Ritchie Mounted Harrow - models 822g has been designed for, and is intended
to be used for the renovation of pasture land, and for levelling gravel areas, manéges,
and equestrian arenas etc.
Deviations from the intended use should not take place without the notice
and approval of David Ritchie (Implements) Ltd.
Features
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zRobust steel construction with replacable high quality tri-spike castings
offering two tine lengths and two tine angles.
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zFloating top link to cope with uneven ground.
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zFitted with category 1 - 3 point linkage.
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zHot Dipped Galvanised frame.
Specifications
Width Height Depth Weight Tractor
(mm) (mm) (mm) (kg) Requirements
2200 730 1830 200 25 HP (min)

Attaching to the Tractor
The implement is fitted with standard
category 1 three point linkage. This linkage
combines the Mounted Harrow and the
Tractor into a single working unit. Lift and
position are controlled hydraulically.
Consult the Tractor Operator’s manual for
instructions on mounting implements and for
rear hitch adjustments.
Fit the tractor lower links to the Harrow lower
link pins and secure with the lynch pins
provided.
Stop the tractor and remove the
ignition key!
Connect the tractor top link to the Harrow
headstock using the pin and lynch pin
provided.
Adjust the top link to ensure the three point
linkage is square to the ground.
Occassionally, the Mounted Harrow may be
supplied in kit form for transport purposes. If
it is to be built up - Pivot the headstock to the
vertical position and attach the stays provided
to the headstock and to the brackets on the
cross members, Fig 1. Check nuts and bolts
for tightness prior to use.
Fig 1
Stays Headstock
!
5

Settings
Fig 2
Fig 3
6
The Harrows are fitted with a unique ‘tri-spike
casting offering 2 tine lengths and two tine
angles.
The harrow mat can be easily reversed to utilise
either the long or the short tine.
To reverse the Harrow Mat:-
With the Harrow attached to the tractor and
framework lowered into the working position
-Release the Harrow Rings from the D-
shackles at the front and sides of the
framework, Fig 2.
Raise the Harrow on the tractor 3 point linkage
and drive forward a short distance to turn the
mat onto the reverse side.
Lower the Harrow frame again to ground level.
Remove the chain retaining bolts, Fig 3, and
slide the chain links off the holders.
The mat should now be completely free of
the Harrow.
Approaching the mat from the opposite side,
reverse the tractor until the harrow frame is
once again positioned over the mat.
Lower the frame and re-attach the front and
side rings to the D-shackles.
Attach chain links to the holder securing with
the bolt provided. Repeat for each chain.
The mat has now been reversed and is ready
for use.

Spare Parts
Tri-spike
Part No. 814-27
Harrow Ring
Part No. 814-9
Replacement Harrow Mat - Part No. 822g-A05
Cleaning
Use a high pressure water jet to remove residue from the machine at the end of each
working day.

David Ritchie (Implements) Ltd,
Carseview Road, Forfar, Scotland, DD8 3BT
Tel: [phone] fax: [phone]
e-mail: [email protected]
www.ritchie-uk.com
Model 824g