Makita HM1801 Technical Information

Makita HM1801 Technical Information

Electric breaker
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T
ECHNICAL INFORMATION
Models No.
Description
C
ONCEPT AND MAIN APPLICATIONS
Model HM1801 has been developed as 28.6mm hex shank electric breaker
conforming to the permissible noise level limit of 2006 stage of European
Noise Directive for Outdoor Equipment.
Despite such low noise level, features highest-in-class chipping efficiency.
This model is the economy version of HM1810, not featuring AVT.
S
pecification
Voltage (V)
110
120
220
230
240
*1: Continuous Rating Input: Taiwan=1,570W, UK (low voltage)=1,700W, Saudi Arabia (low voltage)=1,650W
Specification
Blows per min.: bpm=min
Shank: mm (")
Impact energy: J (catalog value)
Anti-vibration
technology
Permissible noise level limit*
Noise*
:
2
Guaranteed noise level on the
dB(A)
catalog for European countries
Vibration*
: m/s
4
Protection from electric shock
Power supply cord: m (ft)
Net weight: Kg (lbs)
*2: Noise indicates sound power level.
*3: This is the permissible noise level limit of 2006 stage of the "European Noise Directive for Outdoor
Equipment" (2000/14/EC). And in and after 2006, it will be prohibited in Europe to sell the products
with the sound power level exceeding this noise level limit.
The values of the permissible noise level limit listed above are calculated by us in accordance with the
directive. (The calculation is based on the weight of product.)
*
Vibration level on the catalog for European countries
4:
S
tandard equipment
Hex wrench 5 ................ 1 pc
Note: The standard equipment for the tool shown above may differ by country.
O
ptional accessories
Bull point
Cold chisel
Scaling chisel
HM1801
Electric Breaker
Cycle (Hz)
Current (A)
16.0
15.0
AC/DC
9.6
9.2
8.8
Model
-1
Vibration absorbing handle
Counterweight mechanism
3
2
Clay spade
Rammer
Continuous Rating (W)
Input
50/60
1,700
1,700*
50/60
2,000
50/60
2,000
50/60
2,000
Hex 28.6 (1-1/8)
Double insulation
5.0 (16.4) [brazil only: 2.0m (6.6ft)]
W
Dimensions: mm (")
Length (L) 824 (32-1/2)
Width (W)
146 (5-3/4)
Height (H)
633 (25)
Output
950
950
1
1,240
1,240
1,240
HM1801
1,100
63
No
No
110
106
16
30 (66.2)
PRODUCT
P 1 / 18
H
L
Max. Output(W)
2,300
2,300
2,500
2,500
2,500

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Summary of Contents for Makita HM1801

  • Page 1 Description Electric Breaker ONCEPT AND MAIN APPLICATIONS Model HM1801 has been developed as 28.6mm hex shank electric breaker conforming to the permissible noise level limit of 2006 stage of European Noise Directive for Outdoor Equipment. Despite such low noise level, features highest-in-class chipping efficiency.
  • Page 2: Necessary Repairing Tools

    P 2 / 18 epair CAUTION: Disconnect the machine from the power source for safety before repair/maintenance! [1] NECESSARY REPAIRING TOOLS Code No. Description Use for 1R005 Retaining Ring R Pliers RT-2N Removing Retaining ring R-80 from Crank box 1R023 Pipe Ring (for arbor press) Removing Helical gear 47 1R045...
  • Page 3 P 3 / 18 epair [2] LUBRICATION Apply Makita grease to the following portions designated with the black triangle and gray triangle to protect parts and product from unusual abrasion. Item No. Description Portion to lubricate Gear housing complete approx. 80g of Makita grease N No.1 in the gear chambers Spur gear 22 appropriate amount of Makita grease N No.1 to the teeth portion...
  • Page 4 P 4 / 18 epair [3] DISASSEMBLY/ASSEMBLY [3] -1. Disassembling/Assembling Motor Section REMOVING FIELD 1) Remove Motor housing cover set. Fan 100 secured with Hex nut M8 will be now visible. 2) Remove the assembly of Rear cover and Handle (switch side), then Brush holder caps and Carbon brushes. Important: When unscrewing Brush holder caps, be careful not to break the screwdriver insertion slot because the adhesive-applied Brush holder caps are secured tight.
  • Page 5 P 5 / 18 epair [3] DISASSEMBLY/ASSEMBLY [3] -1. Disassembling/Assembling Motor Section (cont.) INSTALLING FIELD Do the reverse of the disassembling steps. Important: Field is not reversible when assembled into Motor housing A. Be sure to assemble so that the Lead wire side of the Field is placed on the Motor housing B side as illustrated to left in Fig.
  • Page 6 P 6 / 18 epair [3] DISASSEMBLY/ASSEMBLY [3] -2. Disassembling/Assembling Gear Section DISASSEMBLING 1) After separating Gear housing from Crank housing, remove Ball bearing 6302LLB with Gear extractor, large (No.1R045). At this time, be careful not to lose Pin 5. Then using Retaining ring S and R pliers (No.1R291) remove Retaining ring S-20.
  • Page 7 Mount Spur gear 47 to Crank shaft complete. After fixing Spur gear 47 with Retaining ring S-20, assemble Ball bearing 6302LLB to Crank shaft complete. (Fig. 16) Fig. 15 Fig. 16 Apply Makita grease N No.1 to the gear portion Ball bearing 6302LLB of Armature before press-fitting Armature onto Retaining ring S-20 Gear housing.
  • Page 8 P 8 / 18 epair [3] DISASSEMBLY/ASSEMBLY [3] -3. Disassembling/Assembling Barrel Section DISASSEMBLING 1) Remove Barrel from Crank housing complete by unscrewing four M12x55 Hex socket head bolts. Then remove Cylinder liner 62. (Fig. 19) Note: Use an appropriate steel pipe to extend the grip of hex wrench for easy removal of the bolts securely fastened with adhesive.
  • Page 9 P 9 / 18 epair [3] DISASSEMBLY/ASSEMBLY [3] -4. Disassembling/Assembling Tool Retainer Section DISASSEMBLING 1) Tool retainer can be removed as illustrated in Fig. 22. Fig. 22 Slotted Tool holder 29 Tool retainer screwdriver Spring pin 8-40 Tool retainer shaft Swivel Tool retainer to the Remove spring pin 8-40 Tap out Tool retainer shaft...
  • Page 10 P 10 / 18 epair [3] DISASSEMBLY/ASSEMBLY [3] -4. Disassembling/Assembling Tool Retainer Section (cont.) ASSEMBLING Do the reverse of the disassembling steps. Note: When assembling Tool retainer to Tool holder 29, follow the instructions described below. (Fig. 25 - 28) Fig.
  • Page 11 P 11 / 18 epair [3] DISASSEMBLY/ASSEMBLY [3] -5. Disassembling/Assembling Tool Holder Section DISASSEMBLING 1) Remove Tool retainer section from Tool holder 29. (Figs. 22, 23, 24) 2) Separate Tool holder 29 from Barrel by unscrewing four M12x45 Hex socket head bolts as illustrated in Fig. 29. Note: Use an appropriate steel pipe to extend the grip of hex wrench for easy removal of the bolts securely fastened with adhesive.
  • Page 12: Maintenance

    98. X ring 40 mounted to Tool holder 29 100. O ring 60 mounted to Impact bolt holder Fig. 36 Piston Striker Cylinder B Impact bolt holder Tool holder 29 2) Additionally apply approx. 60g of Makita grease R No.00 to the inside of Crank housing complete.
  • Page 13: Circuit Diagram

    P 13/ 18 ircuit diagram Motor housing B Side A Color index of lead wires' sheath Black White Side B Orange Purple Field Countries That Require Noise Suppression Circuitry Terminal block Lead unit Connector Pilot lamp Insulated connector Insulated Brush holder Brush holder Insulated connector...
  • Page 14: Other Countries

    P 14/ 18 ircuit diagram Motor housing B Side A Color index of lead wires' sheath Black White Side B Orange Purple Field Other Countries Lead unit Connector Pilot lamp Insulated Insulated Brush holder Brush holder Insulated connector connector on side B on side A connector Switch...
  • Page 15: Wiring Diagram

    P 15/ 18 iring diagram We are explaining the wiring in three sections. (Fig. 37) Fig. 37 Motor housing B Top cover [3] Cap cover Lead wires [1] Crank housing cap Rear case [2] Handle sub base [1] Wiring in Crank Housing Cap Note: Illustrated below in Fig.
  • Page 16 P 16/ 18 iring diagram [2] Wiring in Handle Sub Base When Using Terminal Block 1) Before installing Switch, connect the lead wires with Terminal blocks as illustrated in Fig. 41. Fig. 41 Lead wires of Lead unit to Switch opening of the pipe Before routing, be sure to put through the pipe of Handle sub base from Motor side as illustrated below.
  • Page 17 P 17/ 18 iring diagram [2] Wiring in Handle Sub Base When Not Using Terminal Block 1) Before installing Switch, connect the lead wires with Insulated connectors as illustrated in Fig. 44. Fig. 44 to Switch Lead wires of Lead unit opening of the pipe Before routing, be sure to put through the pipe of Handle sub base from Motor side as illustrated below.
  • Page 18 P 18/ 18 iring diagram [2] Wiring in Cap Cover 1) First, if Noise suppressor is used, in order to protect lead wires, stick Sponge sheet to the surface A of Cap cover so that the longer side of Sponge sheet contacts the surface B of Cap cover and the shorter side contacts the surface C.

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