D50VSR D500H D551H D552H HD500 HD501 AG402 AG451 AG452 AG700
RYOBI
HAMMER DRILL
MODEL NO. D550H
REPAIR SHEET
RYOBI HAMMER DRILL – MODEL NUMBER D550H
13
12 11
10
48
14
49
47
16
15
46
18
44
34
47
21
24
22
42
28
31 30
40
39
32
33
38
37
36
34
35
2
27 26
29
8
7
6
5
4
3
23
20
43
2
17
19
45
41
9
25
1
RYOBI HAMMER DRILL – MODEL NUMBER D550H
The model number will be found on a plate attached to the motor housing. Always mention the model number in all correspondence regarding your
HAMMER DRILL or when ordering repair parts.
PARTS LIST
KEY
NO.
PART
NUMBER
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
6613402
690090003
984723001
984722001
6620310
630636001
690497001
900701001
610305001
690441001
690541001
690542001
400234001
690457001
660290004
660099001
660206018
680379001
690942003
690885001
590233001
690477001
6721901
6703001
660237005
984721001
690443001
DESCRIPTION
KEY
NO.
QTY.
* SCREW (M6 X 27 mm) .....................................
CHUCK .............................................................
GEAR & SPINDLE ASSEMBLY ........................
OUTPUT SPINDLE/GEAR ASSEMBLY ............
* SCREW (M3 X 14 mm) .....................................
SPRING WASHER ...........................................
WASHER ..........................................................
FELT WASHER ................................................
SPEED ADJUST GEAR ....................................
SLIPPING RACK ...............................................
COPPER CAP ..................................................
SPRING ............................................................
SPEED BUTTON ..............................................
STEEL TRACK ROD .........................................
* SCREW (M3 X 5 mm) .......................................
* SCREW (M2.6 X 8 mm) ....................................
* SCREW (M3.5 X 15 mm) ..................................
SPRING WASHER ...........................................
ARAMTURE SHAFT SUPPORT ........................
WASHER ..........................................................
HAMMER ADJUST LEVER ...............................
HAMMER ADJUST PLATE ...............................
STEEL BALL .....................................................
SPRING WASHER ...........................................
* SCREW (M4 X 37 mm) .....................................
BEARING PLATE ASSEMBLY .........................
DRILL MODE INSERT .......................................
PART
NUMBER
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
900722002
6341203
3018808
6620805
660208013
940214045
984717001
5678001
6917601
5927402
730202006
984719001
6620801
6906901
984720001
740399001
6899901
984718001
46
47
48
49
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
2
1
1
1
2
2
1
1
6906201
900694001
590296001
940213032
300636097
983000-129
983000-129R
12-16-04
DESCRIPTION
QTY.
OIL SEAL ..........................................................
GUIDE ROD GAUGE ........................................
AUXILIARY HANDLE ASSEMBLY ....................
* SCREW (M4 X 16 mm) .....................................
* SCREW (M4 X 20 mm) .....................................
DATA PLATE ....................................................
HOUSING ASSEMBLY .....................................
CHUCK KEY STRAP ........................................
CHUCK KEY .....................................................
BEND RELIEF ..................................................
POWER CORD .................................................
SWITCH ASSEMBLY .......................................
* SCREW (M4 X 12 mm) .....................................
CORD CLAMP ..................................................
BRUSH ASSEMBLY .........................................
FIELD ASSEMBLY ...........................................
BEARING (607ZZ) .............................................
ARMATURE ASSEMBLY
(INCLUDES KEY NOS. 44 & 46) .......................
BEARING (608LLB) ...........................................
FELT SEAL .......................................................
MODE SELECTOR ...........................................
LOGO PLATE ...................................................
CARRYING CASE (NOT SHOWN)
OPERATOR'S MANUAL
REPAIR SHEET (REV:00)
WARNING: Improper repair of a double insulated tool can result in damage to the double insulation system possibly causing electrical shock
or electrocution. Any repairs requiring disassembly of your tool requires safety testing and should only be performed by a Ryobi Authorized
Service Center. For the service center nearest you call 1-800-525-2579.
* Standard Hardware Item – May Be Purchased Locally
3
1
1
1
2
9
1
1
1
1
1
1
1
2
1
2
1
1
1
1
1
1
1