Duncan Enviro 3000e, Руководство пользователя

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27
Maintenance Instructions & Hints
1 Front Coulter
Front coulter bearings are sealed and do not require
lubrication. Check discs for any lateral movement (wobble) on
a regular basis. Replace bearings if there is any movement
greater than 5mm. To ensure seal damage does not occur,
check for dirt build-up around the rod seals at the piston
heads on the beam adjusting rams.
2 Double Discs
Check that the discs are free from excessive wobble and the
bearings run smoothly. Replace any worn bearings. Check for
dirt build-up behind the rubber “V” seals on the double disc
castings. Clean right into the corner, as in Fig 20, and check
that the “V” seal bearing surface is not damaged and is free
from rust. It is recommended to replace the inner “V” seals
when the bearings are replaced. When discs wear in diameter
(to 13”), remove the flat washer (Fig 20/1, Part Number
29247) so the discs meet. Also remove the nylon washer (Fig
20/2, Part Number 22136). The double disc coulter is
equipped with two scrapers to remove sticking soil. These
scrapers have been set by the factory in such a way that they
lightly touch the discs without having a noticeable braking
effect. After extensive use of the drill a certain amount of wear
may be evident on the scrapers. The scrapers should be reset
using the adjusting bolt so they just touch the discs as
described above. Refer Fig 19/1. In some cases if a notch has
formed on either of the blades by the abrasive action of the
coulter disc, you may need to regrind the leading edge to give
optimum cleaning action or replace.
3 Both Front Coulters & Double Discs
When replacing font or double disc units on the frame, tighten
the M16x70 bolts first until the thread protrudes through the
nyloc nut by 6 - 6.5mm. Use anti-seize on M16x200 bolts. The
tightening sequence of the two M16x200 bolts alters the
position of the double discs. Measure the spacings of the
discs at the discs, NOT at the clamps. If replacing any blue
plastic bushes in the clamps or double disc castings, spray
the bores with CRC, align the blue bushes correctly and
PRESS the bushes in. Do NOT knock them in.
4 Press Wheels
Scrapers will wear, the rate being dependent on the ground
conditions. The minimum clearance is 2mm. In some
conditions a greater clearance may give better performance.
5 Main Wheels (Tyre Pressure)
The recommmended tyre pressure is 4.5 bar (65psi). Check
tyre pressure regularly to ensure the correct pressure is
maintained. Weekly checks are recommended.
Pt. No. 67303
Issue 0806
Fig 19
1
Remove buildup
of dirt behind
the ‘V’ seal.
Clean right into
this corner.
Double Disc
Casting
Fig 20
2 1