Characteristics Of Hydraulics Of Extension Arm - SaMASZ KW 141 Operator's Manual

3.3. Characteristics of hydraulics of extension arm

Cable-type steering
(Subject: KWT 550/650, CAMEL 900, KOLIBER 400/450)
Geared pumps power two independent circuits: machine's drive circuit with capacity of 100 l/min
and hydraulic cylinders' drive circuit with capacity of 21 l/min. In machine's drive circuits wires have
16 mm diameter, while in cylinders' control circuit 10 mm. Control of oil circulation is possible
owing to hydraulic distributors (3, 6). Oil tank (4) of adequate capacity. In extension arm-type mower's
hydraulic engine's drive circuit there is suction oil filter (5). On gauge plate cylinder (8) there is sweep
valve (7) mounted to protect the machine's extension arms from getting overloaded (Fig. 20) – applies
only to KWT 550, KWT 650 and CAMEL 900. KOLIBER 400 and KOLIBER 450 instead of gauge plate
cylinder (8) both have overload breaker. Hydraulic cylinders (8-11) with throttle choke valves (12)
control the extension arm.
9
11
10
12
7
8
1 – Hydraulic pumps
2 – Hydraulic pumps' engine
3 – Four-section distributor
4 – Oil tank
5 – Suction filter
6 – Single-section distributor
7 – Sweep valve
20
KWT, CAMEL, KOLIBER, KW, LAMA
3
12
Fig. 20. Extension arm-type mower's hydraulic drive diagram
REAR EXTENSION ARMS
6 2 13
4 5
8 – Gauge plate cylinder
9 – External extension arm cylinder
10 – Internal extension arm cylinder
11 – Cutterbar cylinder
12 – Throttle check valve
13 – Cooler
OPERATOR'S MANUAL
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