Mahindra 35 Series, Service Manual

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C-71 35 Series 4WD, Model - 3535, 4035, 4535 and 5035 SM June’08
SPECIAL NOTES
Special Notes
PAINT COATING
With the tractor run-in, nuts and bolts drawn up
tight and all adjustments and corrections made,
the tractor should be given a new coat of paint.
The significant of this should not be underrated
as moisture, rust and corrosion have access where
bolts and nuts were loosened and the original paint
coat has been broken.
A paint spray gun is very useful for this purpose.
It saves time and facilitates painting as with it, odd
corners can be reached without difficulty.
The original paint for tractors (Tractor red) is
available at all Establishments. Be sure to remove
oil and grease from all parts to be painted.
HANDING OVER THE TRACTOR
Grease as per the recommendations.
Check front wheel bearings regularly during the first
week and readjust if necessary.
Keep front axle extension clamps drawn up tight.
Check "toe in" of front wheels and adjust to "0" mm
0 as described in the "Operators Manual".
After 50 hours of operation check front wheels and
adjust again if necessary.
ENGINE TUNE-UP
a. General
The following steps outline the operations in
an engine tune-up. These steps point out the
parts of the engine to be cleaned, checked,
timed or repaired.
b. Diesel Engine
1. AIR CLEANER
a. Check the air cleaner, hoses and clamps for
looseness or leaks.
b. Clean & replace the elements as the
recommendatations.
2. DIESEL ENGINE
Operate the engine and observe its smoke levels,
power and sound. If it misses, smokes excessively
or is low on power, check the following :
a. Check and adjust the intake and exhaust
valves. (Tappet setting)
b. Check the injectors by removing them and
checking the nozzle opening pressure (NOP),
spray pattern and leakage. Service or replace
as necessary.
c. Check engine compression while the injectors
are removed. If the compression is low on one
or more cylinders, make the necessary repairs.
If only one cylinder is low, squirt some engine
oil on top of the piston and recheck. If the
pressure goes up worn rings are indicated;
if it doesn’t go up valve leakage is indicated.
d. If “c.” above didn’t indicate any mechanical
problems, install the serviced injectors and
operate the engine again. If the engine still
runs roughly or lacks power, then check the
injection pump timing. If the timing is correct,
remove the pump and have it serviced by an
authorized Bosh dealer.
e. Check and adjust low and high idle speeds as
needed.
3. FILTERS
a. Replace the engine oil filter & Fuel filters
elements as per the recommendatations.
4. COOLING SYSTEM
a. Check the cooling system for leaks, worn
hoses, loose clamps or plugged cooling fins
and clean or repair as needed.
b. Check the water pump for leaks and repair
as needed.
c. Flush the cooling system and fill with low
silicate antifreeze solution that meet GM 6038
formulation specification. A partial list of
acceptable antifreeze product is listed in the
Operator’s Manual.
d. Check the fan drive belt for wear and tension.
5. ALTERNATOR
a. Check the alternator drive belt for wear and
tension.
b. Check alternator output. Service it if output is
low.
c. Check bearing smoothness and replace them
if they are rough.
6. STARTER MOTOR
a. Check the brushes for wear and sticking and
repair as needed.
b. Check and clean the commutator as needed.
c. Check the drive for wear and replace as
needed.
d. Lubricate the bushings.
7. ELECTRICAL WIRING
a. Examine all wires for corrosion, damage or
loose connections.
b. Check all switches for proper operation.
8. BATTERY
a. Check the battery with a hydrometer for
charge.
b. Bring the electrolyte up to full with distilled
water.