Ryobi D552HK Quick setup guide

RYOBI
1/2 in. HAMMER DRILL
DOUBLE INSULATED
MODEL NO. D552H
REPAIR SHEET

4
1
2
5
6
7
8
9
11
49
1617
1920
22
48
23
27
28
10
10
29
30
31
32 33
34
50
47
44
44
46
45
45
35
36
41
39
3
12
13
15
43
42
26
37
38
14
18
40
21
24
25
RYOBI 1/2 in. HAMMER DRILL – MODEL NUMBER D552H
2
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.

RYOBI 1/2 in. HAMMER DRILL – MODEL NUMBER D552H
3
Key Part
No. Number Description Qty.
PARTS LIST
1 039140001073 * SCREW (M8 x 96 mm).............................................................1
2 039140001074 SQUARE WASHER ..................................................................1
3 039140001075 HANDLE SUPPORT.................................................................1
4 039171001001 AUXILIARY HANDLE................................................................1
5 039171001002 DEPTH GAGE ..........................................................................1
6 039171001003 SWITCH...................................................................................1
7 039140001005 HAMMER & DRILL MODEL SHIFT BUTTON...........................1
8 039140001006 IMPACT PLATE ........................................................................1
9 039171001004 DATA LABEL ............................................................................1
10 039171001005 HOUSING ASSEMBLY.............................................................1
11 039140001010 * SCREW (M4.2 x 14 mm)..........................................................7
12 039140001012 * SCREW (M6 x 22 mm).............................................................1
13 039171001006 ½ in. CHUCK ...........................................................................1
14 039171001007 SPINDLE SHAFT & GEAR ASSEMBLY....................................1
15 039140001027 SLEEVE....................................................................................1
16 039140001037 HOLD SLEEVE.........................................................................1
17 039140001038 NEEDLE BEARING ..................................................................1
18 039171001008 GEAR SHAFT ASSEMBLY.......................................................1
19 039140001042 RETAINING RING.....................................................................1
20 039140001043 WASHER..................................................................................1
21 039171001009 BEARING BLOCK ASSEMBLY ................................................1
22 039140001044 RING ........................................................................................1
23 039140001045 SHIFTING FORK BLOCK.........................................................1
24 039171001010 ARMATURE ASSEMBLY (INC. KEY NO. 40)............................1
25 039171001011 FIELD ASSEMBLY ...................................................................1
26 039140001050 BEARING COVER....................................................................1
27 039140001052 * SCREW (M4 x 6 mm)...............................................................1
28 039140001053 SPRING PLATE........................................................................1
29 039140001054 ROCKER..................................................................................1
30 039140001055 STEEL BALL ............................................................................1
31 039140001056 SPRING ...................................................................................1
32 039140001057 SPEED SELECT KNOB............................................................1
33 039171001012 LOGO LABEL...........................................................................1
34 039140001066 * SCREW (M3.9 x 14 mm)..........................................................2
35 039140001067 CORD CLAMP .........................................................................1
36 039140001070 BEND RELIEF ..........................................................................1
37 039171001014 CHUCK KEY ............................................................................1
38 039171001015 KEY HOLDER ..........................................................................1
39 039171001016 POWER CORD ........................................................................1
40 039140001048 * BALL BEARING (607ZZ)..........................................................1
41 039171001030 CORD LABEL ..........................................................................1
42 039171001031 AUXILIARY HANDLE ASSEMBLY (INC. KEY NOS. 1-4)..........1
43 039171001032 STEEL BALL ...........................................................................1
44 039171001033 BRUSH HOLDER COVER .......................................................2
45 039171001034 BRUSH HOLDER ...................................................................2
46 039171001035 BRUSH W/SPRING ................................................................2
47 039171001036 WHITE BRUSH LEAD ..............................................................1
48 039171001037 * SCREW (M4 x 10 mm) ............................................................1
49 039171001038 * SCREW (M4.2 x 16 mm)..........................................................4
50 039171001039 BLACK BRUSH LEAD .............................................................1
51 039171001020 CARRYING CASE (NOT SHOWN) ...........................................1
987000001 OPERATOR’S MANUAL (039171001021)
12-07-06
(REV:00)
* Standard Hardware Item – May Be Purchased Locally
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.

POWER
CORD
WHITE
LEAD
WHITE
LEAD
WHITE
LEAD
SWITCH
BLACK
LEAD
BLACK
LEAD
BLACK
LEAD
MOTOR
BLACK
LEAD
BLACK
LEAD
BRUSH
ASSEMBLY
BRUSH
ASSEMBLY
RYOBI 1/2 in. HAMMER DRILL – MODEL NUMBER D552H
4
WIRING DIAGRAM