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6.5.
Operating hydraulics
Condition of hoses and hydraulic fittings should be examined periodically and in case of
finding damages replaced with new ones. Irrespective of the above hydraulic hoses should be
replaced with new ones every 5 years taking their storing period into consideration. In winter idle
period it is recommended to store the machine in dry, well vented room, paying attention
the hydraulic hoses are not deflected.
CAUTION:
Oil used in hydraulic circuits is toxic. Prior to performing any servicing,
oil replacement, the operator should wear protective clothing.
Strictly follow the binding provisions on hazardous waste. Used oils
should be drained to special containers and then taken to
treatment plant
6.5.1. Oil tank with equipment
Tightness of tank's (9) welded joints should be examined as well as hoses connections. These
activities should be performed at least once a month (Fig. 58).
Potential leaks shall be welded after the oil is drained. Drain plug (45) is located underneath the
tank (9). Damaged paintwork should be repainted and oil loss supplemented with HYDRAULIC
PREMIUM 46 HV oil group oil with similar properties. The tank holds approx. 150 l of oil – Koliber
400/450, 220 l of oil – Camel 900 and KWT 550/650/651. Refilling oil should be performed through
upper air vent filter (46). In order to perform this "can" should be dismounted from the tank, and only
special sieve shall remain inside, which collects impurities contained in oil. Oil level is indicated by
indicator plug, which should be unscrewed when oil is filled into the tank. Upon obtaining proper oil
level all plugs and filter should be tightened. Above the indicator plug there are hydraulic hoses
nozzles – tank fills (48).
The oil must conform with purity class: 15÷18 in conformity with ISO 4406, 9 in conformity
with standard NAS 1638. If the oil does not conform with the provided purity class then replace it. If
the oil purity is doubtful then it should undergo a purity test in corresponding testing authority.
6.5.2. Oil shut-off valve
Tightness of joint connections at valve (49) should be controlled at least once a day. Leaks
should be removed by tightening nuts and /or band clips (50) (Fig. 59).
Open position – lifting set along feeding hydraulic hoses (ON).
Close position – lifting set perpendicular to feeding hydraulic hoses (OFF).
Operator's manual
45
46
Fig. 58. Oil tank
- 48 -
Arm
Flail head
a nearby oil
9
48
47
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