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Welger AP 53D - Service and Lubrication; Gearbox Oil Change; Knotter Unit Lubrication

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:t~
Pick-up Guide Wheel
The baler can be equipped with a adjustable piƤ-up guide wheel to have optimum
matching of pick-up to ground condi,tion even on uneven fields end to guarantee
clea,n picking up of baling materi.ail.Order number 1121.42.93.00.The gU'idewheel
can be adjusted :in heighrt as requested. Set pick-up so thai fines have a ground
alearance of approx. 2 cm (fig. 14). Observe correot Irre pressure of 11.5bar.
Baler-Mounted Bale Thrower P 23
is mounted to the end of the bale chamber. It loads the boles on to an allached
trailer with special body extension. Economical one man operation where baling
end loading is doneat the same time. The acreage covered is increased by up
to 40%.
ASSEMBLY: at the factory when the baler is ordered with thrower allached, or
by your loGoidealer, if ordered at a leier stage.
Normal Irres of AP 38/42 should be changed against speoiallIrres, see page 8.
Service
and Lubrication
To keep the value end long life of the machine, generous lubrication end careful
regular serv,icing wil.l keep your baler at peak performance and avoid prema-
lure repairs.
General Hints: 'after the first 20 working hours, firmly fighten up all bolts and
nuts, inside and outside the machine. Timing boHs on knoller and rom sildes
shou,ld not be changed.
Usa lithium multi-purpose grease only for your grease gun. NeVer lubricate the
runni,n
,
g machine! Clean grease nipples before applying the gun. Drive greas
,
e
in until the old packing emerges from the sides of the bearings. Do not wipe
off old grease rims (dust protection I).
Service of Gears
Teeth of all spur end beye! gears should be cleaned as necessary.
Road Wheels
Check wheel nuts and Gaps and fixing bolts of wheel stub axles for light fit.
Maintain correct Irre pressure, on AP 38/42 standard Irres on both sides 2.0 bar.
On AP 48/53 standard Irres for right side 7.00-12 also 2.0 bar, on left Irre 10.0/75-
152.3 bar. Pressure for special Irres see page 8.
10
~
eil Change of Gear Box
Carry out first oil change after first 10 duty
hours! Remove crank guard, take off oil filling
bolt 1 with breather, oil drain bolt 2 end oil
level bolt 3 (fig. 15). Clean drain bolt, replace
and fighten. Fi.11about 1 liter of Hypoid Gear
Oi,1SAE 90 (EP 90) info geer box until oil leve,1
is reached. Refit bolts 1 and 2 fighten. Change
oll again at the end of every season. Oll level
hag to be checked regu,larly.
Lubricating the Knotter Unit
After every season apply a light coating of
"Lithium" grease to shafts of twine retainer 4
and knoller back 5 (fig. 16). Loosen lock nut 6
and bolts 7 and 8, remoye leaf spring 9. Un-
screw bolt 10 (fig. 17) end balls 11, then re-
moye knoller unit. Expanding pins 12 are
knocked out of pinion 13, then pull twine
retainer and knotter back out of knoller frame
and apply "Lithi'um"grease onto shafts. Care-
fuJ.lywipe off all surplus paste.
,J
IMPORTANT: The lubricant shou'ld never gel
on to retainer taper 4 end clamp
14.
Re-fit twine retainer and beak at correct
position of clamp 14 and knaller cam 15. Fit
pins 12 in correct posiJion of pinlion 13. Mount
knaller unit in reverse order. Adjust screws 7
end 8 at leaf spring 9 as detailed on page 17.
Fit balls 7 and 8 on tension spring as described
on page 15 and 16.
Ii.
fig. 15
fig. 16
fig.17
11

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