54
KWT, CAMEL, KOLIBER, KW, LAMA
REAR EXTENSION ARMS
OPERATOR’S MANUAL
6.5.7.
Safety valves
Cylinder
(
2
) is connected to twin locking valve (
16
) (
). Its main task is to keep the cylinder's
position, in case of hydraulics failure. This valve is factory set and is not covered by warranty.
Rotation cylinder
(
17
) is connected to sweep valve (
18
) (
), which protects working arms
from overloading. Increasing pressure in cylinder shall cause oil flow and arm deflection. Valve
adjustment is performed with bolt (
19
) located on the valve. Do not make any self-adjustments of the
valve.
Keep in mind that hydraulic hoses (
20
) of cylinder (
17
) must be suitable to hold high pressure
(min 300 bar).
It should be borne in mind, that too big a deflection of the boom, changes the mower's position
to improper. Then the tractor should be stopped immediately and lever (
B
) switched in up position
(extension arm turned left) (
B
). Improper mower's position causes impairment of mowing
quality.
Fig. 61.
Sweep valve (18) for underrun protection
6.5.8.
Hydraulic engine
Hydraulic engine drive's (
21
) hydraulic hoses connection should be controlled at least once
a month. In case of leaking tighten the hoses (
Hydraulic motor (
21
) connected to flail shaft by means of a coupling.
CAUTION!
Hydraulic engine can operate in one direction only (to the left from engine bar
side). Do not connect the engine in the other direction
–
it shall lead to its
damage!
Operation without guard around the hydraulic engine is forbidden
–
it may lead
to damaging the engine!
Fig. 62.
Hydraulic engine driving shaft with cutterbar's knives
19
18
20
17
21