Replacing The Tilt Cylinder (White Valve Block No. 4) - DAL-BO Rollomaximum XL Manual

930 and 1240 cm
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Rollomaximum XL
1. Fit new gaskets in upper part and collar shoe. The scraper ring is mounted
using a piece of pipe, passed around outside of lip,
(or a special drift). Fit collar (9) onto collar shoe using
tubular bar or screwdriver.
2.
Lubricate thread on upper part and cylinder tube with grease (rust-
preventing anti-scratch).
3. Fit upper part (3) to ram shaft.
4. Lock collar shoe (4) and lock nut (10) using Loctite.
Ensure that thread is absolutely clean and free of oil or other
impurities before applying Loctite.
Do not fill with oil for 12 hours after use of Loctite.
5. Lubricate collar shoe (9) and cylinder tube end
inside using lubricating oil. Push ram into centre position.
6. Screw on and tighten the upper part (3).

Replacing the tilt cylinder (white valve block no. 4).

The machine is folded out to the
working position, the wheels (B) are
lifted off the ground and pressure
relieved from the tilt cylinder (A).
1. Disconnect hoses from cylinder
2. Support cylinder
3. Remove split pins from pins, remove pins
4. Remove cylinder
5. Fit new or repaired cylinder
After fitting the tilt cylinder, it is actuated until the cylinder shows a slight
travel. Reverse cylinder until it returns to start position. Move cylinder back-
wards and forwards several times.
If cylinder is not bled correctly as described above, there is a risk that part of
the machine can suddenly move much quicker than normal, and before
the tractor driver can prevent it. This is because air (unlike oil) is com-
pressible. A section can therefore swing out very quickly if air bleeding is not
performed correctly. This represents a major risk of injury to personnel and of
damage to the machine.
A
B
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