BCZ4500DL BCZ4500DW BCZ4500CL BCZ5000DL BCZ5000DW BCZ5000CL BRUSHCUTTERS 848JL093B0 (402) APPLICABLE SERIAL NUMBERS:

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1 848JL093B0 (402) BRUSHCUTTERS BCZ4500DL BCZ4500DW BCZ4500CL BCZ5000DL BCZ5000DW BCZ5000CL NOTE : 1. Use KOMATSU ZENOAH genuine parts as specified in the parts list for repair and/or replacement. 2. KOMATSU ZENOAH does not warrant the machines, which have been damaged by the use of any parts other than those specified by the company. 3. When placing parts orders for repair and/or replacement, check if the model name and the serial number are applicable to those specified in the parts list, then use parts number described in the parts list. 4. The contents described in the parts list are accurate as of the date and may change due to improvement. 5. The parts for the machine shall be supplied ten (10) years after the machine is discontinued. [It is possible that some specific parts may be subject to change of their delivery term and list price within the limit of ten (10) years after the machine is discontinued. It is also possible that some parts may be available even after the limit of ten (10) years.] APPLICABLE SERIAL NUMBERS: February 2004 DRIVE UNIT ENGINE UNIT and up and up

2 BCZ4500DL Fig.1 CUTTER GROUP

3 BCZ4500DL Fig.1 CUTTER GROUP JL05823 PIPE COMP JL058E1 SHAFT JL05832 JOINT COMP JL06100 GEARCASE ASSY BEARING BEARING RING AL3500 SEAL JL061B3 SHAFT JL061C2 GEAR 1 37 T BOLT TORX M6xL8 T T BOLT TORX M4xL8 T JL061D3 PINION BEARING BEARING RING, SNAP RING BOLT TORX JL061F2 HOLDER (A) JL061L2 PLATE JL061G2 HOLDER (B) JL061K1 NUT M12xP JL061J3 COVER SNAP RING 1 52 T BOLT TORX M5xL12 T JL066C2 PLATE JL132B2 BRACKET JL132C2 HOLDER JL132D1 HOLDER JL132E2 CUSHION JL233F2 SPRING T SWITCH SCREW TP5(P-tight)xL16 T BOLT TORX M5xL20 T JL233G2 LEVER JL233H3 ABSORBER JL233K2 HOLDER REAR JL233J2 HOLDER FRONT P40080 CABLE COMP M10070 CORD COMP H20701 TUBE JL093A0 MANUAL JL092A2 BLADE HARNESS ASSY JL092B1 COVER BLADE U00001 TOOL SET T SOCKET BAR JL06911 TAPHEAD ASSY CASE T EYELET T COVER T CORD HOLDER T SPRING T CORD JL066A3 GUARD JL06633 GURD ASSY JL066E3 GUARD-N JL066B2 BLADE BOLT TORX M4xL16 T NUT T BOLT TORX M6xL30 T T BOLT TORX M5xL25 T JL23812 HANGER ASSY HANGER 1 CLAMP BOLT TORX M5xL20 T JJ190R1 PLATE NAME PLATE JL232A2 HANDLE JL232F3 BARRIER T BOLT TORX TORX 5xL20 T JL23312 GRIP ASSY JL233A3 BODY-R JL233B2 BODY-L JL233C3 LEVER JL233D2 SPRING JL233E2 LEVER-S 1 No.45 ( ) might be changed to T in the future.

4 BCZ4500DW Fig.2 CUTTER GROUP

5 BCZ4500DW Fig.2 CUTTER GROUP JL05823 PIPE COMP JL058E1 SHAFT JL05832 JOINT COMP JL06100 GEARCASE ASSY BEARING BEARING RING AL3500 SEAL JL061B3 SHAFT JL061C2 GEAR 1 37 T BOLT TORX 1 38 T BOLT TORX JL061D3 PINION BEARING BEARING RING, SNAP RING BOLT TORX JL061F2 HOLDER (A) JL061L2 PLATE JL061G2 HOLDER (B) JL061K1 NUT M12xP JL061J3 COVER SNAP RING 1 52 T BOLT TORX M5xL12 T JL066C2 PLATE SCREW T SCREW TORX NUT P00110 CABLE COMP M10060 CORD COMP H27501 TUBE JL093A0 MANUAL JL092A2 BLADE HARNESS ASSY JL092B1 COVER BLADE U00001 TOOL SET T SOCKET BAR JL06911 TAPHEAD ASSY CASE T EYELET T COVER T CORD HOLDER T SPRING T CORD JL066A3 GUARD JL06633 GURD ASSY JL066E3 GUARD-N JL066B2 BLADE BOLT TORX M4xL16 T NUT T BOLT TORX JL132K1 BRACKET-UP JL132B2 BRACKET JL132C2 HOLDER JL132D1 HOLDER JL132E2 CUSHION BOLT TORX M5xL20 T T BOLT TORX JL132L2 CLAMP JL23812 HANGER ASSY 1 HANGER 1 CLAMP BOLT TORX M5xL20 T JJ190R1 PLATE NAME PLATE JL03212 HANDLE COMP JL03312 GRIP ASSY JL033A2 BODY-R JL033B3 BODY-L JL033C2 LEVER JL033D1 SPRING JL033E2 LEVER-S T SWITCH 1 No.45 ( ) might be changed to T in the future.

6 BCZ4500CL Fig.3 CUTTER GROUP

7 BCZ4500CL Fig.3 CUTTER GROUP JL05823 PIPE COMP JL058E1 SHAFT JL05832 JOINT COMP JL06100 GEARCASE ASSY BEARING BEARING RING AL3500 SEAL JL061B3 SHAFT JL061C2 GEAR 1 37 T BOLT TORX 1 38 T BOLT TORX JL061D3 PINION BEARING BEARING RING, SNAP RING BOLT TORX JL061F2 HOLDER (A) JL061L2 PLATE JL061G2 HOLDER (B) JL061K1 NUT M12xP JL061J3 COVER SNAP RING 1 52 T BOLT TORX M5xL12 T JL066C2 PLATE JL031A3 FRAME JL031E2 BRACKET-F JL031F2 BRACKET-L SCREW TP5(P-tight)xL16 T JL031B2 HOLDER JL031C2 BAND JL031J3 ABSORBER JL031N3 SPRING BOLT TORX M5xL16 T WASHER JL032L2 CLAMP JL031K3 ABSORBER JL031P3 SPRING 2 83 T BOLT TORX JL033B3 BODY-L JL033C2 LEVER JL033D1 SPRING JL033E2 LEVER-S T SWITCH SCREW T SCREW TORX NUT P00110 CABLE COMP M10060 CORD COMP H27501 TUBE JL093A0 MANUAL JL092A2 BLADE JL03611 HARNESS ASSY JL092B1 COVER BLADE U00001 TOOL SET T SOCKET BAR JL06911 TAPHEAD ASSY CASE T EYELET T COVER T CORD HOLDER T SPRING T CORD JL066A3 GUARD JL06633 GURD ASSY JL066E3 GUARD-N JL066B2 BLADE BOLT TORX M4xL16 T NUT T BOLT TORX JL032C2 BRACKET-UP JL032D2 BRACKET-LO JL032G2 KNOB JJ090R1 PLATE NAME PLATE JL03212 HANDLE COMP JL03312 GRIP ASSY JL033A2 BODY-R 1 No.45 ( ) might be changed to T in the future.

8 BCZ4500DL/BCZ4500DW/BCZ4500CL Fig.4 ENGINE GROUP

9 BCZ4500DL/BCZ4500DW/BCZ4500CL Fig.4 ENGINE GROUP 1 848GD012A1 CYLINDER COMP. 1 GZ45N 2 848GD012C1 COVER, TR, S 1 GZ45N 3 848GD012D1 COVER, TR, F 1 GZ45N 4 848H7012E1 GASKET, TR BOLT TORX M4xL10 T H7012B1 GASKET BOLT TORX M5xL22 T T SPARK PLUG H CRANKCASE COMP PIN 3 11 T GASKET, CASE F3511 BEARING 2 13 T SEAL SEAL RING, SNAP BOLT TORX M5xL30 T GD041A2 PISTON 1 GZ45N RING 2 GZ45N PIN SNAP RING BEARING WASHER H CRANKSHAFT COMP H7015A1 MUFFLER BOLT M5xL BOLT TORX M5xL16 T H7015C1 GASKET 1 34 T PLATE H7053A2 COVER BOLT TORX M5xL16 T H COVER-TOP ASSY H7031E0 TAPE H7031N1 COVER-BOTTOM 1 45 T SCREW TORX 5xL T BOLT TORX M5xL10 T H SHOE COMP SCREW WASHER WASHER H ROTOR H COIL ASSY 1 63 T BOLT TORX M4xL22 T SPACER 2 65 T CAP SPRING 1 67 T CORD COMP NUT KEY H RECOIL ASSY H CASE COMP H7075C1 REEL H7075L1 PLATE, CAM H7075K1 SPRING, DAMPER H7075B1 SPRING, SPIRAL H7075E1 SCREW H7075F1 ROPE H7075J1 KNOB H7075G1 STOPPER H PULLEY ASSY H7075P1 PULLEY H7075R1 RATCHET H7075S0 SPRING E RING BOLT TORX H7014A2 INSULATOR H7082A1 PIPE H7014B1 GASKET H7014C0 GASKET, CARB T BOLT TORX M5xL20 T GD08101 CARBURETOR ASSY 1 GZ45N H7082F0 KNOB PUMP F40450 TUBE H BODY ASSY H COVER ASSY SCREW H7083Y0 GUARD SCREW H7083F1 ELEMENT T PLATE BOLT TORX M5xL50 T BOLT TORX M5xL16 T H BRACKET ASSY T SCREW NUT T BOLT TORX M5xL10 T H7083Z0 WASHER H TANK ASSY T CAP ASSY HOLDER ASSY PACKING FILTER T STOPPER H PIPE COMP FILTER COLLER BOLT H7090B1 LABEL, COVER GD090C1 LABEL, RECOIL 1 GZ45N LABEL (CE) X01180 LABEL JL15302 HOUSING ASSY 1 DL, DW JL153A2 HOUSING 1 DL, DW BEARING 1 DL, DW RING, snap 1 DL, DW JL051A1 DRUM 1 DL, DW SNAP RING 1 DL, DW JL153B2 CLAMP 1 DL, DW JL153D2 ABSSORBER 1 DL, DW JL153H2 ABSSORBER 1 DL, DW RING 1 DL, DW BOLT TORX M5xL10 T27 1 DL, DW 172 T BOLT TORX M6xL30 T27 1 DL, DW JL153J2 COVER 1 DL, DW SCREW TP5(P-tight)xL16 T27 4 DL, DW 175 T BOLT TORX M6xL20 T JL05301 HOUSING ASSY 1 CL JL053A3 HOUSING 1 CL BEARING 1 CL RING, SNAP 1 CL JL051A1 DRUM 1 CL SNAP RING 1 CL BOLT TORX M5xL10 T27 1 CL 188 T BOLT TORX 1 CL

10 BCZ4500DL/BCZ4500DW/BCZ4500CL Fig.5 CARBURETOR Key# PART NUMBER DESCRIPTION NOTE 1 848GD08101 CARBURETOR ASSY H7080Y0 BALL H7081S0 COLLAR C5081G0 COVER, METERING C5081H0 COVER, PUMP H7081M0 DlAPHRAGM, PUMP C5081K0 DIAPHRAGM ASSY, METERING H7089A0 E-RING C5081L0 GASKET, METERING CHAMBER C5081N0 GASKET, PUMP H7081Z0 LEVER, THROTTLE C5081F0 LEVER, METERING C5080P0 O-RING C5081Y0 PIECE, FRICTION C5081E0 PIN C5081J0 PLUG, WELCH C5080N0 PLUNGER H7089B0 POST C5081D0 SCREW C5081P0 SCREW C5080R0 SCREW H7081W0 SCREW C5081W0 SCREW C5080B0 SCREW (WITH SEPRATION) H7081X0 SCREW, THROTTLE ADJUST H7080E0 SHAFT ASSY, CHOKE H7081T0 SHAFT ASSY, THROTTLE C5080M0 SPRING H7080D0 SPRING, CHOKE RETURN H7081R0 SPRING, THROTTLE RETURN H7080Z0 SPRING, FRICTION H7081C0 SPRING, METERING LEVER C5081A0 STRAINER H7080C0 VALVE, CHOKE H7081U0 VALVE,THROTTLE C5081B0 VALVE, INLET NEEDLE H REBUILD KIT H GASKET & DIAPHRAGM KIT 1

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12 BCZ5000DL Fig.6 CUTTER GROUP

13 BCZ5000DL Fig.6 CUTTER GROUP JL05823 PIPE COMP JL058E1 SHAFT JL05832 JOINT COMP JL06100 GEARCASE ASSY BEARING BEARING RING AL3500 SEAL JL061B3 SHAFT JL061C2 GEAR 1 37 T BOLT TORX M6xL8 T T BOLT TORX M4xL8 T JL061D3 PINION BEARING BEARING RING, SNAP RING BOLT TORX JL061F2 HOLDER (A) JL061L2 PLATE JL061G2 HOLDER (B) JL061K1 NUT M12xP JL061J3 COVER SNAP RING 1 52 T BOLT TORX M5xL12 T JL066C2 PLATE JL132B2 BRACKET JL132C2 HOLDER JL132D1 HOLDER JL132E2 CUSHION JL233F2 SPRING T SWITCH SCREW TP5(P-tight)xL16 T BOLT TORX M5xL20 T JL233G2 LEVER JL233H3 ABSORBER JL233K2 HOLDER REAR JL233J2 HOLDER FRONT P40080 CABLE COMP M10070 CORD COMP H20701 TUBE JL093A0 MANUAL JL092A2 BLADE HARNESS ASSY JL092B1 COVER BLADE U00001 TOOL SET T SOCKET BAR JL06911 TAPHEAD ASSY CASE T EYELET T COVER T CORD HOLDER T SPRING T CORD JL066A3 GUARD JL06633 GURD ASSY JL066E3 GUARD-N JL066B2 BLADE BOLT TORX M4xL16 T NUT T BOLT TORX M6xL30 T T BOLT TORX M5xL25 T JL23812 HANGER ASSY HANGER 1 CLAMP BOLT TORX M5xL20 T JL190R1 PLATE NAME PLATE JL232A2 HANDLE JL232F3 BARRIER T BOLT TORX TORX 5xL20 T JL23312 GRIP ASSY JL233A3 BODY-R JL233B2 BODY-L JL233C3 LEVER JL233D2 SPRING JL233E2 LEVER-S 1 No.45 ( ) might be changed to T in the future.

14 BCZ5000DW Fig.7 CUTTER GROUP

15 BCZ5000DW Fig.7 CUTTER GROUP JL05823 PIPE COMP JL058E1 SHAFT JL05832 JOINT COMP JL06100 GEARCASE ASSY BEARING BEARING RING AL3500 SEAL JL061B3 SHAFT JL061C2 GEAR 1 37 T BOLT TORX 1 38 T BOLT TORX JL061D3 PINION BEARING BEARING RING, SNAP RING BOLT TORX JL061F2 HOLDER (A) JL061L2 PLATE JL061G2 HOLDER (B) JL061K1 NUT M12xP JL061J3 COVER SNAP RING 1 52 T BOLT TORX M5xL12 T JL066C2 PLATE SCREW T SCREW TORX NUT P00110 CABLE COMP M10060 CORD COMP H27501 TUBE JL093A0 MANUAL JL092A2 BLADE HARNESS ASSY JL092B1 COVER BLADE U00001 TOOL SET T SOCKET BAR JL06911 TAPHEAD ASSY CASE T EYELET T COVER T CORD HOLDER T SPRING T CORD JL066A3 GUARD JL06633 GURD ASSY JL066E3 GUARD-N JL066B2 BLADE BOLT TORX M4xL16 T NUT T BOLT TORX JL132K1 BRACKET-UP JL132B2 BRACKET JL132C2 HOLDER JL132D1 HOLDER JL132E2 CUSHION BOLT TORX M5xL20 T T BOLT TORX JL132L2 CLAMP JL23812 HANGER ASSY 1 HANGER 1 CLAMP BOLT TORX M5xL20 T JL190R1 PLATE NAME PLATE JL03212 HANDLE COMP JL03312 GRIP ASSY JL033A2 BODY-R JL033B3 BODY-L JL033C2 LEVER JL033D1 SPRING JL033E2 LEVER-S T SWITCH 1 No.45 ( ) might be changed to T in the future.

16 BCZ5000CL Fig.8 CUTTER GROUP

17 BCZ5000CL Fig.8 CUTTER GROUP JL05823 PIPE COMP JL058E1 SHAFT JL05832 JOINT COMP JL06100 GEARCASE ASSY BEARING BEARING RING AL3500 SEAL JL061B3 SHAFT JL061C2 GEAR 1 37 T BOLT TORX 1 38 T BOLT TORX JL061D3 PINION BEARING BEARING RING, SNAP RING BOLT TORX JL061F2 HOLDER (A) JL061L2 PLATE JL061G2 HOLDER (B) JL061K1 NUT M12xP JL061J3 COVER SNAP RING 1 52 T BOLT TORX M5xL12 T JL066C2 PLATE JL031A3 FRAME JL031E2 BRACKET-F JL031F2 BRACKET-L SCREW TP5(P-tight)xL16 T JL031B2 HOLDER JL031C2 BAND JL031J3 ABSORBER JL031N3 SPRING BOLT TORX M5xL16 T WASHER JL032L2 CLAMP JL031K3 ABSORBER JL031P3 SPRING 2 83 T BOLT TORX JL033B3 BODY-L JL033C2 LEVER JL033D1 SPRING JL033E2 LEVER-S T SWITCH SCREW T SCREW TORX NUT P00110 CABLE COMP M10060 CORD COMP H27501 TUBE JL093A0 MANUAL JL092A2 BLADE JL03611 HARNESS ASSY JL092B1 COVER BLADE U00001 TOOL SET T SOCKET BAR JL06911 TAPHEAD ASSY CASE T EYELET T COVER T CORD HOLDER T SPRING T CORD JL066A3 GUARD JL06633 GURD ASSY JL066E3 GUARD-N JL066B2 BLADE BOLT TORX M4xL16 T NUT T BOLT TORX JL032C2 BRACKET-UP JL032D2 BRACKET-LO JL032G2 KNOB JL090R1 PLATE NAME PLATE JL03212 HANDLE COMP JL03312 GRIP ASSY JL033A2 BODY-R 1 No.45 ( ) might be changed to T in the future.

18 BCZ5000DL/BCZ5000DW/BCZ5000CL Fig.9 ENGINE GROUP

19 BCZ5000DL/BCZ5000DW/BCZ5000CL Fig.9 ENGINE GROUP 1 848H7012A1 CYLINDER COMP. 1 GZ50N 2 848H7012C1 COVER, TR, S 1 GZ50N 3 848H7012D1 COVER, TR, F 1 GZ50N 4 848H7012E1 GASKET, TR BOLT TORX M4xL10 T H7012B1 GASKET BOLT TORX M5xL22 T T SPARK PLUG H CRANKCASE COMP PIN 3 11 T GASKET, CASE F3511 BEARING 2 13 T SEAL SEAL RING, SNAP BOLT TORX M5xL30 T H7041A2 PISTON 1 GZ50N 18 T RING 2 GZ50N PIN SNAP RING BEARING WASHER H CRANKSHAFT COMP H7015A1 MUFFLER BOLT M5xL BOLT TORX M5xL16 T H7015C1 GASKET 1 34 T PLATE H7053A2 COVER BOLT TORX M5xL16 T H COVER-TOP ASSY H7031E0 TAPE H7031N1 COVER-BOTTOM 1 45 T SCREW TORX 5xL T BOLT TORX M5xL10 T H SHOE COMP SCREW WASHER WASHER H ROTOR H COIL ASSY 1 63 T BOLT TORX M4xL22 T SPACER 2 65 T CAP SPRING 1 67 T CORD COMP NUT KEY H RECOIL ASSY H CASE COMP H7075C1 REEL H7075L1 PLATE, CAM H7075K1 SPRING, DAMPER H7075B1 SPRING, SPIRAL H7075E1 SCREW H7075F1 ROPE H7075J1 KNOB H7075G1 STOPPER H PULLEY ASSY H7075P1 PULLEY H7075R1 RATCHET H7075S0 SPRING E RING BOLT TORX H7014A2 INSULATOR H7082A1 PIPE H7014B1 GASKET H7014C0 GASKET, CARB T BOLT TORX M5xL20 T H CARBURETOR ASSY 1 GZ50N H7082F0 KNOB PUMP F40450 TUBE H BODY ASSY H COVER ASSY SCREW H7083Y0 GUARD SCREW H7083F1 ELEMENT T PLATE BOLT TORX M5xL50 T BOLT TORX M5xL16 T H BRACKET ASSY T SCREW NUT T BOLT TORX M5xL10 T H7083Z0 WASHER H TANK ASSY T CAP ASSY HOLDER ASSY PACKING FILTER T STOPPER H PIPE COMP FILTER COLLER BOLT H7090B1 LABEL, COVER H7090C1 LABEL, RECOIL 1 GZ50N LABEL (CE) X01180 LABEL JL15302 HOUSING ASSY 1 DL, DW JL153A2 HOUSING 1 DL, DW BEARING 1 DL, DW RING, snap 1 DL, DW JL051A1 DRUM 1 DL, DW SNAP RING 1 DL, DW JL153B2 CLAMP 1 DL, DW JL153D2 ABSSORBER 1 DL, DW JL153H2 ABSSORBER 1 DL, DW RING 1 DL, DW BOLT TORX M5xL10 T27 1 DL, DW 172 T BOLT TORX M6xL30 T27 1 DL, DW JL153J2 COVER 1 DL, DW SCREW TP5(P-tight)xL16 T27 4 DL, DW 175 T BOLT TORX M6xL20 T JL05301 HOUSING ASSY 1 CL JL053A3 HOUSING 1 CL BEARING 1 CL RING, SNAP 1 CL JL051A1 DRUM 1 CL SNAP RING 1 CL BOLT TORX M5xL10 T27 1 CL 188 T BOLT TORX 1 CL

20 BCZ5000DL/BCZ5000DW/BCZ5000CL Fig.10 CARBURETOR Key# PART NUMBER DESCRIPTION NOTE 1 848H CARBURETOR ASSY H7080Y0 BALL H7081S0 COLLAR C5081G0 COVER, METERING C5081H0 COVER, PUMP H7081M0 DlAPHRAGM, PUMP C5081K0 DIAPHRAGM ASSY, METERING H7089A0 E-RING C5081L0 GASKET, METERING CHAMBER C5081N0 GASKET, PUMP H7081Z0 LEVER, THROTTLE C5081F0 LEVER, METERING C5080P0 O-RING C5081Y0 PIECE, FRICTION C5081E0 PIN C5081J0 PLUG, WELCH C5080N0 PLUNGER H7089B0 POST C5081D0 SCREW C5081P0 SCREW C5080R0 SCREW H7081W0 SCREW C5081W0 SCREW C5080B0 SCREW (WITH SEPRATION) H7081X0 SCREW, THROTTLE ADJUST H7080E0 SHAFT ASSY, CHOKE H7081T0 SHAFT ASSY, THROTTLE C5080M0 SPRING H7080D0 SPRING, CHOKE RETURN H7081R0 SPRING, THROTTLE RETURN H7080Z0 SPRING, FRICTION H7081C0 SPRING, METERING LEVER C5081A0 STRAINER H7080C0 VALVE, CHOKE H7081U0 VALVE,THROTTLE C5081B0 VALVE, INLET NEEDLE H REBUILD KIT H GASKET & DIAPHRAGM KIT 1

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22 1-9 Minamidai, Kawagoe, Saitama, Japan PRINTED IN JAPAN PRINTED ON RECYCLED PAPER IMPRIMÉ SUR PAPIER RECYCLÉ GEDRUCKT AUF RECYCLING PAPIER STAMPATO SU CARTA RICICLATA IMPRESO EN PAPEL RECICLADO