Doosan P158LE, P180LE, P222LE, PU158TI, PU180TI, PU222TI — 2.2. Engines Characteristic

2.2.33. Air cleaner Air cleaner is mounted on the engine to purify the air for combustion. The intervals at which the air cleaner requires servicing depend on the specific operating conditions encountered. Clogged air filters may cause black smoke and reduce power. A check should be made from time to time to see that the fastening elements securing the air cleaner to the intake manifold seal the connection tightly. Any ingress of unfiltered air is liable to cause a high rate of cylinder and piston wear. 2.2.34. Electrical equipment 1) Alternator The alternator is fitted with integral silicon rectifiers.

A transistorized regulator mounted on the alternator body interior limits the alternator voltage. The alternator should not be operated except with the regulator and battery connected in circuit to avoid damage to the rectifier and regulator. P-TAB : KET GP 890545 TACHOMETER CHARGE INDICATOR ALDO SYSTEM FREQUENCY = M6 x 1.0 THREAD BATTERY TERMINAL RPM 10 "L" Terminal "R" Terminal CONNECTOR HOUSING KET MG 620042 TERMINAL KET ST 740254 EA8O3006 The alternator is maintenance-free, nevertheless, it must be protected against dust and, above all, against moisture and water. Operate the alternator according to the instructions given in the chapter To Battery + “Commissioning and operation”.

Regulator RL = 150~250 OHM EA8O3007 Technical Information - 39 -