1. Engine removal preparation
(1) Remove the battery ground wire.
(2) Remove the hood and protective cover, and remove the lower protective cover.
(3) Remove the air filter hose.
(4) Remove the counterweight.
(5) Remove the heat pipe.
(6) Remove the oil pipe and heating pipe, and disconnect the air conditioner connecting pipe as required.
(7) When necessary, remove the pump, muffler and radiator.
(8) Remove the electrical wiring connector.
①Remove the engine grounding cable.
②Remove the starter cable-starter B terminal.
③Remove the engine accessories and the connector connecting the engine and the upper car body.
④Remove the electrical wiring of the upper car body: CN206-engine auxiliary fuel tank wiring: CN134, CN135-speed regulating motor; CN136-engine speed sensor: CN143-engine oil level switch; CN141, CN142-pump matching valve; CN113, CN115-P1 , P2 negative control pressure sensor; CN139, CN140-P1, P2 pump pressure sensor wiring.
Prepare a table that can support the mass of the engine assembly and can firmly place the engine to be disassembled.
2. Kobelco excavator disassembly
(1) Remove the fixing bolts of the engine bracket.
①Remove the 4 engine bolt fixing nuts M18.
②Remove the protective cover and rubber pad.
③Remove two M18×130 and two M18×140 engine fixing bolts.
④Remove 4 washers.
⑤Remove the 4 protective covers.
⑥Remove the front rubber pad bracket of the engine and the rear rubber pad bracket of the engine.
(2) Hang the engine car body.
Prepare a table that can withstand the mass of the engine assembly and can hold the disassembled engine. Put the engine sling into the lifting ears on the front and rear sides.
(3) Lift the engine out of the car and place it firmly on the disassembly platform.
3. Installation
Install in the reverse order of removal.
