D50VSR D500H D551H D552H HD500 HD501 AG402 AG451 AG452 AG700
RYOBI
1/2 in. HAMMER DRILL
DOUBLE INSULATED
MODEL NO. D552H
REPAIR SHEET
RYOBI 1/2 in. HAMMER DRILL – MODEL NUMBER D552H
7
3
49
12
5
1
4
2
13
8
9
10
11
42
6
14
16
17
48
19
15
43
20
22
23
18
40
27
28
24
26
44
47
10
25
21
45
30
29
31
36
46
37
38
32
33
45
50
44
34
41
39
35
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.
2
RYOBI 1/2 in. HAMMER DRILL – MODEL NUMBER D552H
The model number will be found on a label attached to the motor housing. Always mention the model
number in all correspondence regarding your HAMMER DRILL or when ordering repair parts.
Key
Part
No.
Number
1
039140001073
2
039140001074
3
039140001075
4
039171001001
5
039171001002
6
039171001003
7
039140001005
8
039140001006
9
039171001004
10
039171001005
11
039140001010
12
039140001012
13
039171001006
14
039171001040
15
039140001027
16
039140001037
17
039140001038
18
039171001008
19
039140001042
20
039140001043
21
039171001043
22
039140001044
23
039140001045
24
039171001010
25
039171001105
26
039140001050
27
039140001052
28
039140001053
29
039140001054
30
039140001055
31
039140001056
32
039140001057
33
039171001012
34
039140001066
35
039140001067
36
039140001070
37
039171001014
38
039171001015
39
039171001016
40
039140001048
41 039171001030
42 039171001031
43
039171001032
44
039171001033
45
039171001034
46
039171001035
47
039171001036
48 039171001037
49 039171001038
50
039171001039
51
039171001020
987000001
6-28-12
(REV:01)
PARTS LIST
Description
Qty.
Screw (M8 x 96 mm).................................................................1
Square Washer.........................................................................1
Handle Support........................................................................1
Auxiliary Handle........................................................................1
Depth Gage..............................................................................1
Switch.......................................................................................1
Hammer & Drill Model Shift Button..........................................1
Impact Plate.............................................................................1
Data Label................................................................................1
Housing Assembly....................................................................1
Screw (M4.2 x 14 mm)..............................................................7
Screw (M6 x 22 mm).................................................................1
½ In. Chuck..............................................................................1
Spindle Shaft & Gear Assembly...............................................1
Sleeve.......................................................................................1
Hold Sleeve..............................................................................1
Needle Bearing.........................................................................1
Gear Shaft Assembly................................................................1
Retaining Ring..........................................................................1
Washer......................................................................................1
Bearing Block Assembly...........................................................1
Ring..........................................................................................1
Shifting Fork Block...................................................................1
Armature Assembly (Inc. Key No. 40).......................................1
Field Assembly.........................................................................1
Bearing Cover...........................................................................1
Screw (M4 x 6 mm)...................................................................1
Spring Plate..............................................................................1
Rocker......................................................................................1
Steel Ball...................................................................................1
Spring.......................................................................................1
Speed Select Knob...................................................................1
Logo Label................................................................................1
Screw (M3.9 x 14 mm)..............................................................2
Cord Clamp..............................................................................1
Bend Relief...............................................................................1
Chuck Key................................................................................1
Key Holder................................................................................1
Power Cord...............................................................................1
Ball Bearing (607ZZ).................................................................1
Cord Label................................................................................1
Auxiliary Handle Assembly (Inc. Key Nos. 1-4)........................1
Steel Ball ..................................................................................1
Brush Holder Cover .................................................................2
Brush Holder ...........................................................................2
Brush w/Spring ........................................................................2
White Brush Lead.....................................................................1
Screw (M4 x 10 mm) ................................................................1
Screw (M4.2 x 16 mm)..............................................................4
Black Brush Lead.....................................................................1
Carrying Case (Not Shown)......................................................1
Operator’s Manual (039171001021)
3
RYOBI 1/2 in. HAMMER DRILL – MODEL NUMBER D552H
BRUSH
ASSEMBLY
BLACK
LEAD
BLACK
LEAD BRUSH
ASSEMBLY
WHITE
LEAD
BLACK
LEAD
SWITCH
MOTOR BLACK
LEAD
WHITE
LEAD
BLACK
LEAD
POWER
CORD
WIRING DIAGRAM
4
WHITE
LEAD