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T ECHNICAL INFORMATION 46522
Subject Change on gear housing and grip
For Models 8419B-2, M801, HP2000, HP2010, HP2010N and HP2020 (Hammer Drill)
Description 1. Teeth, which will slip into grooves to be made in the new type grip, will be added to the
gear housing as shown in the figure below.
Teeth
L R
2. Grooves will be made in the grip as shown in the figures as shown in the figures below.
Current New
3. The wing bolt which secures the depth rod will be changed from M5x15 to M5x20.
Interchangeability(I/C)
Item No. Current part Q'ty I/C New part Q'ty Note
Gear housing Gear housing 1 For 8419B-2 and M801
10 1 <=
156440-1 159690-7
Gear housing Gear housing For HP20000, HP2010,
8 1 <= 1 HP2010N and HP2020
156740-9 159691-5
Grip assembly <= Grip assembly
122412-8 1 122428-3 1
Grip No Grip
405 273626-3 1 273627-1 1
Wing nut M6 Wing nut M8
400 1 No 1
252623-2 252635-5 Constituent parts of grip
Hex bolt M6x40 No Hex bolt M8x50 assembly
403 1 1
921362-2 921472-5
Flat washer 6 No Flat wahser 8
401 1 1
941152-7 941202-8
Wing bolt M5x15 <= Wing bolt M5x20 For securing the depth rod
404 1 1
924216-2 924226-9
Note
Interchangeability mark: <= mark indicates that the new type parts can be sudstituted for the current type parts.
Implementation
8419B-2: From serial No. 461783E
HP2000 : From serial No. 88713E
HP2010N: From serial No. 447719E
HP2020 : From serial No. 19074E
M801, HP2010: Discontinued