OPERATION & MAINTENANCE MANUAL SWE18UF
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3.12 Hydraulic Quick Hitch
Quick hitch device can change working tools easily by the operating button and operating joystick in the
cab.
SWE18UFcrawler type hydraulic excavator is equipped with SWQC02 hydraulic quick hitch, of which the
working pressure is 4～21MPa, the greatest pressure is 30MPa, working flow is 10～20L/min and cylinder
stroke is 40mm.
Joint specification of pressure oil source valve block is G1/4 , it’s plane sealed with ED pad.
1. Valve block joint of pressure oil source ① connect with the right hydraulic quick hitch pipeline (The left
and right hydraulic quick hitch pipeline is distinguished by the driving direction when operator sits in the cab.)
2. Valve block joint of pressure oil source ② connect with the left hydraulic quick hitch pipeline .
Pipeline connection method varies with different brands. More details, please contact with the designated
agent of Sunward or the manufacturer of hydraulic quick hitch.
Operation Procedure of Hydraulic Quick Hitch
1. Lower left control box to unlock pilot safety rod ①.
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