Hitachi DH 20PB Manual

POWER TOOLS
TECHNICAL DATA
AND
SERVICE MANUAL
HAMMER DRILL
DH 20PB
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
LIST No. E462 Feb. 2002
D
MODELS
DH 20PB

ELECTRIC TOOL PARTS LIST
LIST NO.
HAMMER DRILL
Model DH 20PB
2002
•
2
•
5
(E1)
E462
501 502
503
123456
7
8
9
10
11
12
13
14 15 16 17 18 19
20
21
22
23 24
25 26 27 28
29
30
31 32
33
34
35
36
37
38 39 40
41 42
43 44
45
46
47
48
49 50 51
45 52
53
54
55
56
57 58 59
60 61 62 63
64 65 66
66 67 68 69 70
71
72

*ALTERNATIVE PARTS
--- 2 ---
ITEM
NO. CODE NO. DESCRIPTION REMARKS
NO.
USED
PARTS
2 -- 02
DH20PB
1 306-345 FRONT CAP 1
2 306-992 GRIP 1
3 306-343 BALL HOLDER 1
4 306-342 HOLDER SPRING 1
5 984-118 WASHER (B) 1
6 939-547
RETAINING RING FOR D20 SHAFT (10 PCS.) 1
7 314-876 GEAR COVER 1
8 301-654 TAPPING SCREW (W/FLANGE) D5X35 4
9 314-881 O-RING 1
10 981-328 SPRING (H) 1
11 959-155 STEEL BALL D3.97 (10 PCS.) 1
12 314-878 O-RING 1
13 314-877 CHANGE LEVER 1
14 307-688 OIL SEAL 1
15 307-690 SLEEVE 1
16 690-4DD BALL BEARING 6904DDPS2L 1
17 986-147 RETAINING RING FOR D37 HOLE 1
18 959-156 STEEL BALL D7.0 (10 PCS.) 1
19 959-154 STEEL BALL D5.556 (10 PCS.) 3
20 314-882 CYLINDER 1
21 301-677 SECOND GEAR 1
22 301-678 SPRING (A) 1
23 301-679 WASHER (A) 1
24 948-310 RETAINING RING FOR D30 SHAFT 1
25 301-671 SECOND HAMMER 1
26 301-672 O-RING (B) 1
27 301-680 O-RING (I.D. 10.5) 1
28 315-148 STRIKER 1
29 301-670 O-RING (A) 1
30 301-668 PISTON 1
31 301-666 PISTON PIN 1
32 303-977 WASHER (C) 1
33 314-880 INNER COVER 1
34 301-664 SPRING (B) 1
35 315-161 GEAR SHAFT SET 1
36 301-659 WASHER (B) 1
37 301-660 CLUTCH SPRING 1
38 301-661 CLUTCH 1
39 992-912 O-RING (S-8) 1
40 306-990 RECIPROCATING BEARING 1
41 301-663 SPACER 1
42 626-VVM BALL BEARING 626VVC2PS2L 1
43 876-796 O-RING (P-22) 1
44 608-DDM BALL BEARING 608DDC2PS2L 1
45 982-631 WASHER (A) 2
* 46 360-446U ARMATURE ASS’Y 110V-115V 1 INCLUD.44,45,52
* 46 360-446E ARMATURE 220V-230V 1
47 314-879 FAN GUIDE ASS’Y 1 INCLUD.48
48 994-343 RUBBER BUSHING 2
* 49 340-398C STATOR 110V-115V 1
* 49 340-398F STATOR 230V-240V 1

*ALTERNATIVE PARTS --- 3 ---
ITEM
NO. CODE NO. DESCRIPTION REMARKS
NO.
USED
PARTS
2 -- 02
DH20PB
50 314-914 INTERNAL WIRE (A) (BLACK) 1
51 314-913 INTERNAL WIRE (A) (GRAY) 1
52 608-VVM BALL BEARING 608VVC2PS2L 1
53 314-889 HOUSING 1
* 54 NAME PLATE 1
55 314-912 INTERNAL WIRE (A) (RED) 1
56 314-915 INTERNAL WIRE (A) (WHITE) 1
57 301-653
TAPPING SCREW (W/FLANGE) D4X20 (BLACK) 3
58 314-891 HANDLE COVER 1
* 59 314-916
SPEED CONTROL SWITCH (2P) 100V-115V 1
* 59 314-921 SPEED CONTROL SWITCH (2P) 220V-240V 1
60 994-273 NOISE SUPPRESSOR 1
61 302-488 EARTH TERMINAL 1
62 999-041 CARBON BRUSH (1 PAIR) 1
62 999-072 CARBON BRUSH (AUTO STOP TYPE) (1 PAIR) 1
63 955-203 BRUSH HOLDER 2
64 HITACHI LABEL 1
* 65 981-373 TUBE (D) 2 FOR CORD
66 315-147 DUST PACKING 1
67 314-922 CHOKE COIL (A) BLUE 1
68 314-923 CHOKE COIL (A) BROWN 1
69 984-750 TAPPING SCREW (W/FLANGE) D4X16 2
70 937-631 CORD CLIP 1
71 953-327 CORD ARMOR D8.8 1
* 72 500-390Z CORD 1 (CORD ARMOR D8.8)
* 72 500-440Z CORD 1 (CORD ARMOR D8.8) FOR GBR (230V)
* 72 500-391Z CORD 1 (CORD ARMOR D8.8) FOR SUI

*ALTERNATIVE PARTS
--- 4 ---
STANDARD ACCESSORIES
OPTIONAL ACCESSORIES
ITEM
NO. CODE NO. DESCRIPTION REMARKS
NO.
USED
ITEM
NO. CODE NO. DESCRIPTION REMARKS
NO.
USED
2 -- 02
501 307-786 CASE 1
502 303-659 SIDE HANDLE 1
503 303-709 DEPTH GAUGE 1
601 306-369 DRILL BIT (SLENDER SHAFT) D3.4X90 1
602 306-368 DRILL BIT (SLENDER SHAFT) D3.5X90 1
603 306-370
ADAPTER FOR SLENDER SHAFT (SDS PLUS) 1
604 944-460 TAPER SHANK DRILL BIT D11X100 1
605 944-461 TAPER SHANK DRILL BIT D12.3X110 1
606 993-038 TAPER SHANK DRILL BIT D12.7X110 1
607 944-462 TAPER SHANK DRILL BIT D14.3X110 1
608 944-500 TAPER SHANK DRILL BIT D14.5X110 1
609 944-463 TAPER SHANK DRILL BIT D17.5X120 1
610 944-464 TAPER SHANK DRILL BIT D21.5X140 1
611 303-617
TAPER SHANK ADAPTER (SDS PLUS) NO.1 1
612 303-618 TAPER SHANK ADAPTER (SDS PLUS) NO.2 1
613 303-619 A-TAPER SHANK ADAPTER (SDS PLUS) 1
614 303-620 B-TAPER SHANK ADAPTER (SDS PLUS) 1
615 944-477 COTTER 1
616 303-332 HAMMER DRILL CHUCK SET 13MM 1 INCLUD.617,618
617 303-334 CHUCK HANDLE 1
618 303-335 RUBBER CAP 1
619 302-976
ANCHOR SETTING ADAPTER A (SDS+)W1/4X260L 1
620 302-975 ANCHOR SETTING ADAPTER A(SDS+)W5/16X260L 1
621 303-621 ANCHOR SETTING ADAPTER A (SDS+)W3/8X160L 1
622 302-974
ANCHOR SETTING ADAPTER A (SDS+)W3/8X260L 1
623 302-979 ANCHOR SETTING ADAPTER B (SDS+)W1/4X260L 1
624 302-978 ANCHOR SETTING ADAPTER B(SDS+)W5/16X260L 1
625 303-622
ANCHOR SETTING ADAPTER B (SDS+)W3/8X160L 1
626 302-977 ANCHOR SETTING ADAPTER B (SDS+)W3/8X260L 1
627 971-794 ANCHOR SETTING ADAPTER A W1/4" (MANUAL) 1
628 971-795
ANCHOR SETTING ADAPTER A W5/16" (MANUAL) 1
629 971-796 ANCHOR SETTING ADAPTER A W3/8" (MANUAL) 1
630 971-797 ANCHOR SETTING ADAPTER A W1/2" (MANUAL) 1
631 971-798
ANCHOR SETTING ADAPTER A W5/8" (MANUAL) 1
DH20PB

*ALTERNATIVE PARTS --- 5 ---
ITEM
NO. CODE NO. DESCRIPTION REMARKS
NO.
USED
OPTIONAL ACCESSORIES
2 -- 02
632 971-799 ANCHOR SETTING ADAPTER B W1/4" (MANUAL) 1
633 971-800 ANCHOR SETTING ADAPTER B W5/16" (MANUAL) 1
634 971-801 ANCHOR SETTING ADAPTER B W3/8" (MANUAL) 1
635 971-802
ANCHOR SETTING ADAPTER B W1/2" (MANUAL) 1
636 971-803 ANCHOR SETTING ADAPTER B W5/8" (MANUAL) 1
637 982-684 CENTER PIN (A) 109L FOR CORE BIT D32-38 1
638 982-685 CENTER PIN (B) 104L FOR CORE BIT D45-90 1
639 982-672 CORE BIT (A) 25MM 1
640 982-673 CORE BIT (A) 29MM 1
641 982-674 CORE BIT (A) 32MM 1 INCLUD.642
642 982-686 GUIDE PLATE (FOR CORE BIT 32MM) 1
643 982-675 CORE BIT (A) 35MM 1 INCLUD.644
644 982-687 GUIDE PLATE (FOR CORE BIT 35MM) 1
645 982-676 CORE BIT (A) 38MM 1 INCLUD.646
646 982-688 GUIDE PLATE (FOR CORE BIT 38MM) 1
647 982-677 CORE BIT (B) 45MM 1 INCLUD.648
648 982-689 GUIDE PLATE (FOR CORE BIT 45MM) 1
649 982-678 CORE BIT (B) 50MM 1 INCLUD.650
650 982-690 GUIDE PLATE (FOR CORE BIT 50MM) 1
651 303-625 CORE BIT SHANK (SDS PLUS) 25-38MM 105L 1
652 303-626 CORE BIT SHANK (SDS PLUS) 25-38MM 300L 1
653 303-627 CORE BIT SHANK (SDS PLUS) 45-90MM 300L 1
654 303-046 BULL POINT (SDS+) 250MM(ROUND SHANK TYPE) 1
655 303-044 CHEMICAL ANCHOR ADAPTER (SDS+)12.7MMX90L 1
656 303-045
CHEMICAL ANCHOR ADAPTER(SDS+)19.0MMX100L 1
657 303-820 DRILL CHUCK AND ADAPTER SET (SDS PLUS) 1 INCLUD.658,661
658 950-275 DRILL CHUCK 13VLR 1 INCLUD.659,660
659 930-515 CHUCK WRENCH 10G 1
660 981-122 SPECIAL SCREW M6X22 1
661 303-623 CHUCK ADAPTER (G) (SDS PLUS) 1
662 950-272 DRILL CHUCK 13VLA 1 INCLUD.659
663 303-624 CHUCK ADAPTER (D) (SDS PLUS) 1
664 971-511Z + DRIVER BIT (A) NO.2 25L 1
665 971-512Z + DRIVER BIT (A) NO.3 25L 1
666 306-885 DUST COLLECTOR (B) ASS’Y 1 INCLUD.667
667 306-910 SOCKET ADAPTER (B) 1
668 971-787 DUST CUP 1
669 931-844 STOPPER 1
672 981-840
GREASE (A) FOR HAMMER.HAMMER DRILL (30G) 1
673 308-471 GREASE FOR HAMMER.HAMMER DRILL (70G) 1
674 980-927
GREASE FOR HAMMER.HAMMER DRILL (500G) 1
675 320-612 SERVICE KIT (DH 24PB) 1 INCLUD.1,9,12-14,18,19,26,27,29,62,672
DH20PB