Mahindra DISC PLOUGH User manual

FOREWORD
The purpose of this manual is to explain to you the correct procedure for assembly, maintenance and routine adjust-
ments, which are necessary for the most efficient operation of your Disc Plough. To protect your investment, study
this manual before assembling and /or operating in the field.
This manual has been carefully prepared and the information is arranged and illustrated in a manner to make it as easy
as possible for you to find required information. The “exploded view” of each unit shows the individual parts clearly
and their normal relationship to one another.
By selecting the Disc Plough manufactured by Mahindra & Mahindra Ltd. you purchase a product which has been
designed and developed to suit your soil and farming conditions. We feel that you will obtain from this Disc Plough the
economical and superior performance for which it is designed.
Properly adjusted and maintained, the Disc Plough will respond to all reasonable demands you make upon it and give
you reliable service for years to come.
It is a policy of Mahindra and Mahindra Ltd. to improve its products wherever it is possible and practical to do so. We
reserve the right to make changes or add improvements at any time without incurring any obligation to make such
changes on any implements sold previously.

Disc Plough
MANUFACTURER’S WARRANTY
1. Mahindra & Mahindra Limited, tractor division (here-
inafter called ”company”) warrants to the retail pur-
chaser of the products manufactured by them that the
Company's dealer will repair or replace any part thereof
subject to limitations specified herein below found to
be defective in materials or workmanship in their opin-
ion, within 6 months of operation, from the date when
the products are delivered new to the original retail
customer (the purchaser).
2. This warranty is limited to the delivery to the retail
purchaser, free at the Authorised Dealers workshop, of
the part or parts whether repaired or replaced in ex-
change for those acknowledge by the company to be
defective.
3. This warranty is a differential policy by which we are
giving warranty only on those items marketed by the
company & not on all items.
4. The Customer will be required to make a thorough ex-
amination of the Product prior to Purchase. The
Authorised Dealer are in no way the legal agents of the
Company and have no right or authority to give any
other warranty or assume any obligation on the behalf
of the Company or bind the Company in any matter
whatsoever.
5. For the purpose of Warranty, the term Product means
& includes only new Implements & Attachments manu-
factured or marketed by the or for the Company to the
Company’s designs and drawings and sold and installed
by the Authorised Dealer. The term product does not
include Frame, Discs, Bearings, fasterners, furrow
wheel disc, scrapper & spring. Proprietary articles are
covered by the warranty (if any) given by the respec-
tive manufactures. Their decision would be final on
the proprietary items as regards the claims.
6. The company’s responsibility is limited to the term of
this warranty and it shall not be liable for personal
injuries or consequential liability, damage or loss aris-
ing from any defects. This warranty shall not apply to
the defects / damages caused by normal wear & tear,
accidents, misuse or negligence on the part of cus-
tomer, defects in the products which have been al-
tered outside company’s works or which have been let
out on hire, or in case of tempering or removal, alter-
ation of identification marks.

Disc Plough
7. The Company’s Liability under this Warranty is depen-
dent upon the strict observance by the Customer, of
the following provisions :
a) The Customer at the time of delivery shall sign,
complete and return the Authorised Warranty Card.
b) Repair or replacement will be performed by the
facility of Authorised Dealer / its branch dealer /
its Authorised Service Centre only, following deliv-
ery of the product by the customer to the facility
of Authorised Dealer / its branch dealer /its
Authorised Service Centre.
c) This warranty shall not apply if the product or part
any there of is repaired or altered not in accor-
dance with our standard repair procedure or by
any person other than an Authorised dealer / its
branch dealer / its Authorised Service Center.
d) The decision of the company or the concerned
authorised dealer in regards to the claims shall be
final & conclusive and the customer hereby agrees
to the unconditionally accept their decision on all
questions, as defects and to the exchange of part
or parts.
e) Claims arising from this warranty will be consid-
ered only if they are notified in writing to the con-
cerned Authorised Dealer or to the company
promptly after the defects has been ascertained.
f) The company reserves the right to make changes
in designs or introduce any improvement or added
any parts on the products at any time without in-
curring any obligation to install the same on the
products previously sold.
g) The customer shall at all the times use only those
brands of lubricants oils, lubricants or fuel which
are approved in writing by the company, for oper-
ating the products.
8. The use of replacement parts, not manufactured or
supplied by the company, on the products will auto-
matically invalidate this warranty.
9. The above warranty is in lieu of all other Warranties
expressed or implied, and no person, agent or repre-
sentatives of the company is authorised to give any
other Warranties on the company’s behalf or assume
of if any other liability in connection, with the above
products.
MANUFACTURER’S WARRANTY

Disc Plough
10.The court at Mumbai shall have exclusive jurisdiction
to try, entertain and dispose off all proceeding relat-
ing the any dispute arising between the Company and
the Customer on the liability of the Company under
this warranty.
MANUFACTURER’S WARRANTY

Disc Plough
Operation General .................................................................................... 1
Adjustments ............................................................................................ 3
Operation Disc Plough ................................................................................ 6
Trouble Shooting ..................................................................................... 12
Setting up Instruction ............................................................................... 14
Storage ................................................................................................ 18
Parts Catalogue ...................................................................................... 19
CONTENTS

Disc Plough
PRE-PREPRATION PRIOR TO USE
Plough bottoms, discs and other parts finished with a light
polish and varnish before leaving the factory to prevent
rust, Good work cannot be accomplished until varnish is
removed. For this purpose use a good varnish remover.
Lubricate plough in accordance with instructions given on
page 3.
ATTACHING PLOUGH TO THE TRACTOR
Remove swinging draw bar (if fitted on the tractor) or
move the pins to one side so as to ensure that It does not
foul with the plough.
Reverse the tractor to the plough and line up the three
point linkage lower draft links. Attach the top link if ad-
justable.
ATTACH THE LEFT LOWER DRAFT LINK.
Use the levelling gear box on right lift rod of the tractor
to attach the lower the draft link at the right, to the plough
rockshaft.
In case of top link being not adjustable attach lower left
draft link first, then the right side draft link and finally,
the top link.
Note: Leave the check chain on lower draft links loose
until final adjustments are made and the plough is follow-
ing the tractor correctly.
RAISING & LOWERING
The plough is raised and lowered by operating the tractor
three point linkage. On tractor equipped with position and
draft control system, use position control to raise or lower
the plough.
LEVELLING THE PLOUGH
The plough is levelled side ways by means of the adjust-
able vertical link attached to the right lower draft link of
the tractor. The fore and aft levelling is done by adjusting
the top link length of three point linkage on the tractor.
WIDTH ADJUSTMENT
Rotation of rockshaft changes the configuration of plough
bottom with reference to the tractor and adjust the width
1
OPERATION GENERAL

Disc Plough 2
OPERATION GENERAL
of cut. For detailed adjustments of rockshaft refer to in-
dividual instructions of the plough operation.
FURROW WIDTH
Maximum furrow width obtainable in the ploughs are 304.8
mm per bottom. The width of cut of the furrow is varied
by means of the stub beam attaching holes provided in
the main frame and shift of each hole will result in 50.8
mm displacement of the plough bottoms sideways.
Hence the width of cut can be changed in steps of 50.8
mm for a maximum of 12.
BE SURE THAT ALL FURROWS ARE SET TO CUT THE SAME
WIDTH.

Disc Plough
1. Rockshaft Adjustment
There are two adjustments that should be done on rock-
shaft
a) Lateral or positional adjustment
b) Rotation of rockshaft
Lateral or positional adjustment of the rock shaft is done
by loosening 4 nuts marked B1 in figure 1 fixed on ‘U’
bolts on rockshaft clamps and two nuts marked B2 fixed
on ‘U’ bolt on arm rockshaft and moving the rockshaft
sideways. This adjustment is to be done initially before
the plough is attached to the tractor. This is only a guide
line for location of rockshaft and final adjustments have
to be done in the field, depending upon the width of cut
of front furrow.
Rotation of rock shaft changes the configuration of the
plough bottoms with reference to the line of motion of
tractor and thereby affects the width of cut of front fur-
row. The adjustment is done by loosening 4 nuts marked
B1 in illustration 3 and rotating the rockshaft with the
help of width control crank marked ‘C’ in figure 1.
C
B1 B
B2
Figure 1
ADJUSTMENTS
3

Disc Plough
Adjustment of rockshaft will have effect on width of the
front furrow. After commencing the second round of
ploughing check the width of cut of front furrow. The width
of cut of the front furrow is affected when the lead of the
rear furrow is altered. Adjusting the lead towards the fur-
row wall will increase the width of cut of the front fur-
row, whilst away from the wall will decrease the width of
front furrow.
If too wide or too narrow, loosen the rockshaft clamp bolts
and move the plough along the rockshaft to the right or
left as required.
ADJUSTMENTS
4