GROUP 1 HYDRAULIC CIRCUIT GROUP 1 HYDRAULIC CIRCUIT SECTION 3 HYDRAULIC SYSTEM SECTION 3 HYDRAULIC SYSTEM 9 8 11 10 1 Main pump 2 Main control valve 3 Swing motor 4 Travel motor 5 RCV lever (LH) 6 RCV lever (RH) 7 RCV pedal 8 Boom cylinder (LH) ( ,P04) 2 ( ,h) 25 [BOOM UP] [ROD] [HEAD] ( ,PaL) 2 ( ,P02) 2 ( ,PDb2) 2 [BUCKET OUT] [BUCKET IN] [BOOM DOWN] ( ,C) 12 ( ,D) 12 ( ,A) 12 [ROD] [HEAD] ( ,PAb1) 2 ( ,PDa) 2 ( ,PAb1) 2 [BOOM UP] ( ,g) 25 ( ,f) 25 [ARM IN] ARM 2 (ARM OUT) (ARM REGEN CUT) (BREAKER) (UNLOCK SIGNAL) ( ,j) 25 [LH-BW] [LH-FW] ( ,PCbc) 2 (ARM IN) Bb Ab ( ,1) 7 ( ,2) 7 Bk Ak P04 PBk PAk PBa2 PAa2 DR6 P02 Bbk PBa PBrc PAbk DR4 DR2 PbL PBb1 PAb1 Btr Atr PBtr PAtr 2 ARM REGEN BUCKET BOOM BOOM 1 Cck BbkR LCbk CRb ( ,Pi1) 1 Pn1 Pn2 NRV2 NRV2 NRV1 NRV1 LCk2 LCk1 LCa2 BbR AbR LCb1 ( ,Pi2) 1 BkR AkR LCar BtR AtR P5 P4 Rs ( ,MU) 3 CoR DoR DaR BOOM 2 SWING P/R [S/M MAKE UP] BC1 BC2 Cco LCo CaR LCa1 Ccb LCs 1 OPTION ARM 1 SWING (LEFT) TRAVEL TS TS P1 3-1 CRa Pi1 27 ( ,Pn2) 2 PS 20 23 16 ( ,PAk) 2 Ca Da DR7 PaL PCa PDa PCsp Cs Ds PCs PDs DR5 P03 DR3 DR1 PS P01 14 13 PCbc [BUCKET CONF.] PDbc [OPTION CONF.] DR9 Co P05 Do PDo PCo ( ,c) 25 PDb2 ( ,VA) 3 ( ,VB) 3 ( ,a) 25 ( ,b) 25 Ctl PCtl Dtl ( ,3) 7 ( ,4) 7 PDtl Ptr ( ,P4) 21 Patt PS 15 18 [BUCKET IN] [UNLOCK SIGNAL] ( ,PAa2) 2 [SWING PRIORITY] ( ,PAb1) 2 [SWING CCW] [SWING CW] (BOOM PRI.) [RH-BW] [RH-FW] 24 24 19 [HEAD] [ROD] ( ,d) 25 [BOOM UP PILOT] ( ,A5) 21 DR#,dr# 21 17 ( ,PBa) 2 [ARM OUT] ( ,B) 12 Dr MA ( ,e) 25 ( ,P2) 21 VB(FW) VA(BW) ( ,Atr) 2 ( ,Btr) 2 ( ,Ctl) 2 ( ,Dtl) 2 ( ,A3) 21 [ARM IN] [TRAVEL] (3) (4) (1) (2) ( ,PCtl) 2 [RH-BW] 34 P T 4 4 REG REG 12 P T ( ,PAtr) 2 ( ,PDtl) 2 [RH-FW] A1 A2 FC1 FC2 ( ,2) 34 ( ,P01) 2 ( ,Psv) 1 ( ,A3) 1 C A D B Dr P ( ,A1) 21 ( ,PBtr) 2 [LH-BW] R/H L/H Ps MB 7 26 6 26 5 26 [LH-FW] ( ,P) 7 ( ,P) 6 ( ,P) 5 Ps MA 24 24 24 24 [BOOM DOWN] ( ,PG) 3 P1 VA(FW) VB(BW) [SWING] [ARM] [BUCKET] [BOOM] a b d e f g h j e1 e2 h1 h2 d1 PS PS PS ( ,PBb1) 2 P4 P3 P2 (1) (3) (2) (4) (3) (1) (2) (4) A B E D H J F G PS ( ,PAb1) 2 [BOOM UP] A1 A2 A3 ( ,A1) 21 ( ,A1) 21 P T P T ( ,PBk) 2 [BUCKET OUT] ( ,P3) 21 MB ( ,PAk) 2 [BUCKET IN] ( ,e1) 25 PG ( ,RS) 2 60 59 ( ,PCa) 2 [ARM IN] ( ,P03) 2 ( ,P) 12 ( ,Pu) 2 SH MB MA MU PS ( ,PDa) 2 [ARM OUT] ( ,SH) 3 1.
HYDRAULIC CIRCUIT 1. HYDRAULIC CIRCUIT VB(CW) VA(CCW) ( ,Cs) 2 ( ,Ds) 2 R/G 24 ( ,PDs) 2 [SWING CW] A5 3 c ( ,PCs) 2 [SWING CCW] ( ,PCsp) 2 PS [SWING PRIORITY] AU DR 25 T SECTION 3 HYDRAULIC SYSTEM GROUP 1 HYDRAULIC CIRCUIT BC1 NR BC2 NRV1 V2 Cck Cco BkR CoR AkR DoR LCo LCk1 LCk2 CaR DaR OPTION OPTION BUCKET BbkR CRa ARM 1 LCa1 LCa2 ( ,PDa) 2 PAa2 (ARM OUT) DR6 P02 ARM 2 Ccb LCar SWING P/R BbR PBrc(ARM REGEN CUT) BOOM 2 ARM REGEN LCbk SWING AbR CRb BOOM 1 LCs LCb1 BtR AtR (LEFT) TRAVEL (RIGHT) TRAVEL M RV