Ciocan Demolator Makita HM 1203 C
Ciocan Demolator Makita HM 1203 C
Ciocan Demolator Makita HM 1203 C
Listed below are specification differences between the two models. Dimensions: mm (")
Model No. HM1213C HM1203C Model No. HM1213C HM1203C
AVT (Active dynamic vibration absorber) Length (L) 576 (22-3/4)
Yes No
Vibration absorbing handle
Width (W) 149 (5-7/8) 128 (5)
Height (H) 265 (10-3/8)
Specification
Continuous Rating (W)
Voltage (V) Current (A) Cycle (Hz) Max. Output (W)
Input Output
110 15 50/60 1,510 700 1,600
120 14 50/60 --- 700 1,600
220 7.8 50/60 1,510 750 1,800
230 7.8 50/60 1,510 750 1,800
240 7.8 50/60 1,510 750 1,800
Standard equipment
Side handle (D-shaped) ........... 1 Plastic carrying ........................ 1
Bit grease .................................. 1 Cleaning cloth .......................... 1
Bull point .................................. 1
Note: The standard equipment for the tool shown above may vary by country.
Optional accessories
Bull points Grooving chisel Grease vessel (containing 30g hammer grease)
Cold chisels Clay spade Plastic carrying case
Scaling chisels Bushing tool Safety goggles
Scaling chisel (for Tile) Rammer Hammer service kit
P 2/ 17
Repair
CAUTION: Remove the Hammer bit from the machine for safety before repair/ maintenance
in accordance with the instruction manual!
[2] LUBRICATIONS
Apply lubricants to the portions designated by triangles to protect parts and product from unusual abrasion.
Item No. Description Portion to lubricate for Tool holder section Lubricant Amount
1 Tool holder cap Lip portion
6 Chuck ring Inner wall where 8 Tool retainer contacts
8 Tool retainer Belly side where shank of Hammer bit contacts Makita grease N No.2
a Portion where Rubber ring 30 contacts a little
24 Tool holder
b Portion where Lock ring contacts
23 O ring 35.5 Whole portion for smooth action of 24 Tool holder
in Barrel complete Makita grease R No.00
Fig. 1 1
Ring spring 26 6
Flat washer 30
Chuck cover
Rubber ring 30
a
Release cover 8 24
Spring guide 23
Change ring
b
Lock ring
8
P 3/ 17
Repair
[2] LUBRICATIONS (cont.)
Item No. Description Portion to lubricate for Impact bolt section and Crank section Amount
25 X ring 21
Whole portion for smooth action of Impact bolt in 24 Tool holder a little
26 Fluoride ring 28
34 O ring 44 Whole portion for smooth action of Striker in 36 Cylinder 40
Space between Piston and Striker 10g
36 Cylinder 40 Space between Impact bolt and Striker Makita grease R 10g
37 Pin 12 Whole portion No. 00
a little
38 O ring 31.5 Whole portion for smooth action of Piston in 36 Cylinder 40
62 Crank housing Space where Helical gear 57 and Crank shaft rotate 40g
66 Crank shaft Pin portion where Connecting rod accepts a little
77 Armature Drive end (Gear portion) 10g
25 36 37
Shoulder sleeve Piston
Striker 34
38 62
Connecting rod
66
Gear housing
Ball bearing 6206LLU
Helical gear 57
77
Item No. Description Portion to lubricate for AVT mechanism (HM1213C only) Lubricant Amount
42 55 O ring 12 Whole portion
44 53 O ring 12 Whole portion Makita grease R
a little
47 49 O ring 24 Whole portion No. 00
50 Counter weight Drum portion where Pipe 22 contacts
Fig. 3 Compression
spring 15
Compression
42 spring 15
44
47
49
50
Spring guide
Pipe holder
P 4/ 17
Repair
[3] ASSEMBLY/ DISASSEMBLY
[3]-1. Chuck
DISASSEMBLING
(1) Remove Handle section as illustrated in Fig. 4.
Fig. 4
Remove six 5x25 Tapping screws. For easy and safety disassembling, stand the machine
Disconnect Connector of Switch from Controller. on Work bench as illustrated below.
Separate Handle section (Handle base, Switch, And remove Tool holder cap with slotted screwdriver.
Power supply cord, Handle, Handle cover.)
Handle section
Tool holder cap
5x25 Tapping
screw (6pcs.) Chuck cover
Controller
Connector
(2) After removing ring spring 26, disassemble the components of Chuck mechanism.
Tool retainers can be removed from Tool holders as illustrated in Fig. 5.
Fig. 5
Pressing down Flat washer 30 with Remove Flat washer 30, Chuck cover While pressing down Spring guide,
1R363, remove Ring spring 26 Rubber ring 30, Chuck ring and remove two Tool retainers.
using 1R003 with 1R212. Release cover.
Chuck cover
Rubber ring 30
1R363
Chuck ring
Release
Ring 1R212 cover
spring 26 1R003
Flat washer 30
Change
Chuck cover ring cover Tool retainer (2pcs.)
P 5/ 17
Repair
[3] ASSEMBLY/ DISASSEMBLY
[3]-1. Chuck (cont.)
(3) The components of Chuck mechanism can be removed form Tool holder as illustrated in Fig. 6.
Fig. 6
Remove Spring guide, Compression spring 35, Change ring is fixed to Change ring cover with
Change ring cover. Retaining ring (EXT) WR-45.
Chuck mechanism can be removed in this step. Remove Retaining ring with 1R003.
Change ring can be removed from Change ring cover.
Change ring
Spring guide
Retaining ring
(EXT) WR-45
Compression
spring 35 Retaining ring
(EXT) WR-45
Change ring
cover Change ring
cover
Change ring
ASSEMBLING
Fig. 7
Remove four M8x35 Hex socket head bolts and M5x25 Insert Screwdriver through Tool holder cap and
Hex socket head bolt. strike Screwdriver. Impact bolt, two Shoulder
Housing cover and Barrel section can be separated from sleeves and Rubber ring 24 are removed.
Crank housing without disassembling Chuck mechanism.
Housing cover
M8x35 Hex
socket head
bolt (4pcs.)
Impact bolt
M5x25 Hex
socket head
bolt Barrel section
Rubber
Crank housing ring 24
Shoulder
sleeve
(2) When O ring 23 (orange) shows through the worn Fluoride ring 28 Fig. 9
as illustrated in Fig. 9, all the rings on Impact bolt have to be replaced.
X ring 21
Fluoride ring 28
O ring 23
Impact bolt
(3) Disassemble Cylinder 40 from Crank housing, and take out Striker from Cylinder 40 as illustrated in Fig. 10.
Fig. 10
Strike the reverse side of Crank housing as illustrated Remove Striker from Cylinder 40 by
below. pushing out toward Impact bolt side.
Cylinder 40 can be removed from Crank housing. O ring 35 can be removed from Striker.
O ring 31.5
One way
valve guide Striker
P 7/ 17
Repair
[3] ASSEMBLY/ DISASSEMBLY
[3]-2. Impact bolt, Cylinder, Striker (cont.)
ASSEMBLING
(1) Insert Striker with O ring 31.5 into Cylinder 40 so that O ring 31.5 faces Crank housing side as illustrated in Fig. 11R.
Fig. 11R Fig. 11F
Correct Wrong
One way One way
Cylinder 40 valve guide O ring 31.5 Cylinder 40 valve guide O ring 31.5
Striker
Striker
Crank housing side Impact bolt side Crank housing side Impact bolt side
(2) Assemble X ring 21, O ring 23 and Fluoride ring 28 to Impact bolt as illustrated in Fig. 12.
Fig. 12
(3) Mount Shoulder sleeves and Rubber ring 24 to Impact bolt as illustrated in Fig. 13.
Fig. 13
Note: Pay attention to the directions of Shoulder sleeves.
See illustration below.
Disassemble Active dynamic vibration absorber as illustrated in Figs. 12, 13 and 14.
Fig. 14 Fig. 15
Fig. 16
ASSEMBLING
Fig. 19
Spiral spring
(5) Separate Motor housing from Crank section as illustrated in Fig. 20.
Fig. 20
1R263
Motor housing
Note: Flat washer 15 may come out with Armature at this time. Flat
Pay attention not to lose it. washer 15
P 10/ 17
Repair
[3] ASSEMBLY/ DISASSEMBLY
[3]-4. Crank section
DISASSEMBLING
(6) Disassemble Crank section as illustrated in Figs. 21, 22 and 23.
Fig. 21
Crank cap
Gear housing
complete
Armature
Fig. 22
Set Crank pin at dead point on Handle 1 Strike Crank housing as illustrated below. Crank shaft is
assembling side as illustrated bellow. removed together with Helical gear 57 and Ball bearing 6206LLU.
Flat washer 12
Connecting rod
Piston
2
Crank pin at dead center point
of Connecting rod 2 Piston can be removed together with Connecting rod.
Fig. 23
Replace O ring 35 and O ring 31.5 with the new ones in the following cases.
* When damage or wear is recognized.
* When carbon brush is replaced.
Piston
P 11/ 17
Repair
[3] ASSEMBLY/ DISASSEMBLY
[3]-4. Crank section
DISASSEMBLING
(7) Disassemble Crank shaft from Helical gear 57 as illustrated in Fig. 24.
Fig. 24
Hold Helical gear 57 with Put 1R029 onto Crank shaft, Put 1R029 onto Crank shaft.
two pieces of 1R258. and press the 1R029 with And press 1R029 with Arbor press.
Arbor press. Crank shaft can be removed
together with Ball bearing 6206LLU.
Helical gear 57
Ball bearing
6206LLU
Crank shaft
1R029
1R258
Crank shaft
Ball bearing
6206LLU
ASSEMBLING
(1) Assemble Ball bearing 6206LLU and Helical gear 57 to Crank shaft as illustrated in Fig. 25.
Fig. 25
Face the high stepped rim of Helical gear 57 to Ball bearing side, and assemble Helical gear 57 to Crank shaft as
illustrated in Fig. 23R. Otherwise, it causes incomplete engaging with Armatures Gear as illustrated in Fig. 23F.
Armatures Armatures
1R029 gear gear
High Helical Helical
stepped rim gear 57 gear 57
Helical
Ball bearing gear 57
6206LLU
Crank shaft
1R258
P 12/ 17
Repair
[3] ASSEMBLY/ DISASSEMBLY
[3]-4. Crank section
ASSEMBLING
(2) Assemble Crank shaft section to Crank housing as illustrated in Figs. 26 and 27.
Fig. 26
Insert Piston into Cylinder 40. And assemble the Cylinder to Crank housing.
Cylinder 40 Cylinder 40
Crank
Housing
Piston
Fig. 27
Move Connecting rod of piston to dead center point on Crank shaft is assembled to Crank housing that
Handle assembling side. is connected with Connecting rod of Piston.
And then, aligning Piston pin to the hole of Do not forget to assemble Flat washer 12 to
Connecting rod, tap Helical gear 57 with Plastic hammer. Crank shaft.
Flat washer 12
Connecting
rod of Piston
Armature
Ball bearing
6000DDW
P 13/ 17
Repair
[3] ASSEMBLY/ DISASSEMBLY
[3]-5. Armature
ASSEMBLING
Take the disassembling step in reverse.
Note: Make sure that Flat washer 15 is set in place. (Fig. 20)
Remove Handle cover. So the electrical parts, (Switch, Power supply cord, Terminal block etc.)
can be replaced.
Switch
Fig. 30
Pull off Lever stopper with pliers. Switch lever can be removed.
Lever stopper
Switch lever
P 14/ 17
Repair
[3] ASSEMBLY/ DISASSEMBLY
[3]-7. Vibration Absorbing Handle (only for HM1213C)
DISASSEMBLING
(1) Disassemble Handle section. (the left illustration in Fig. 2)
(2) Vibration absorbing handle can be disassembled as illustrated in Figs. 31 and 32.
Fig. 31 Fig. 32
Handle
Compression Spring 11
ASSEMBLING
Assemble the Vibration absorbing handle, paying attention to the directions of Dust cover and Dust cover support. (Fig. 33)
Fig. 33
Flat washer 5
Upper side
Handle
Lower side
P 15/ 17
Repair
[3] DISASSEMBLY/ASSEMBLY
[3]-8 Fastening torque
Fasten the specific bolts and screws to the appropriated torques. (Fig.34)
Fig. 34
Barrel complete
15 63
Crank housing
Item No. Description Qty Fastening torque
15 M5x25 Hex socket head bolt 1 3 - 3.5 N.m
19 M8x35 Hex socket head bolt 4 30 - 40 N.m Gear housing
63 M6x40 H. S. button head screw 6 4.0- 4.5 N.m
Motor housing
Chuck cover
21
Impact bolt 30 Barrel complete 23
33 Flat washer 39
Shoulder sleeve 38
Striker Tool holder
40
Piston
P 16/ 17
Circuit diagram
Fig. D-1
Terminal
block
Wiring diagram
Insert Carbon brush into Brush holder as illustrated in Fig. D-2.
Fig. D-2
Wiring of Carbon brush
Motor housings
Correct brim side Wrong
Motor housing Motor housing
Rear cover
Pig tail Brush holder unit side Brush holder unit Pig tail
Insert Carbon brush into Brush holder Do not face the pig tail connected portion to
so that the pig tail connected portion faces Rear cover side when inserting Carbon brush
Motor housings brim side. into Brush holder.
P 17/ 17
Wiring diagram
Fig. D-3
Wiring to Switch
Switch Switch
Fig. D-4
Wiring in Handle
Switch
Insulated connector
The following Lead wires have Expand the Lead wires between
to be put on the Lead wire (thin, Switch and Lead wire holder.
black) connecting Switch and
Controller, in this Lead wire holder.
* Lead wire (thick, black) connecting Lead wire holder Fix Lead wires with
Switch and Terminal block, covered with Sponge Sponge sheet and
* Lead wire (thick, white) connecting sheet Lead wire holder.
Switch and Controller
Lead wire holder