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P 1

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19

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epair

[3]-5A. Crank section, Gears
(HM1317C, HM1317CB with AVT mechanism) 

[3] DISASSEMBLY/ASSEMBLY
[3]-5. Crank section, Gears (HM1307C, HM1307CB without AVT mechanism) 

DISASSEMBLING

1. Remove Crank cap cover,
    levering up it with Slotted
    head screwdriver.
    And remove M6x30 Hex
    socket head bolts.

2. Twist the Slotted head screw drivers
    inserted into the gap between Bearing
    box complete and Crank housing
    complete. Bearing box complete can be
    removed from Crank housing complete. 

(5B) Disassemble Crank section as illustrated in 

Figs. 21B

 

and 22B

.

Fig. 21B

Fig. 22B

Retaining 
ring S-8

Needle 
bearing
1813

Ball bearing 608ZZ

Shoulder
washer 8

1R045

1R346

1R291

Crank cap 
cover

Bearing box
complete

M6x30
Hex socket 
head bolt (3pcs.)

Pay attention, not to lose
Pin 10 when removing the
Bearing box complete.
The Pin 10 is an important
parts for AVT mechanism. 

Pin 10 is mounted
in the opposite side
of this part.

Pin 10

Bearing box
complete

Bearing box complete

Counter 
shaft

Retaining 
ring R-22

1R291

Counter shaft

Fig. 23A

Crank cap

O ring 87

(6A) O rings on Crank cap and Crank cap cover, and Filter can be replaced.   See 

Fig. 23A

.

O ring 74

Crank cap section can be disassembled.

Crank cap 
cover

Filter

DISASSEMBLING

Summary of Contents for HM1317C

Page 1: ...ameter mm 730 1 450 Electronic control Variable speed control by dial Constant speed control Soft start Yes Yes Yes Suppression of motor speed during no load Yes No Yes No No 28 6 1 1 8 30 1 3 16 Shan...

Page 2: ...tractor Removing Cylinder section 1R269 Bearing extractor Removing Ball bearing of Commutator side 1R348 Spring pin 8 remover Removing Spring pin 8 40 from Tool retainer for HM1307CB HM1317CB 1R239 28...

Page 3: ...es 1412 and Gear complete 31 43 etc Makita grease R No 00 Makita grease R No 00 Makita grease R No 00 Amount Lubricant Lubricant Amount 60g 10g 10g a little a little 47 O ring 45 Whole portion for act...

Page 4: ...e 3 Remove Strain relief Controller Switch and Power supply cord can be removed from Controller cover complete Fig 4 Fig 5 Power supply cord Pin 4 Switch 3 2 Tool holder section HM1307C HM1317C DISASS...

Page 5: ...CB can be repaired without removing Tool holder from Barrel Stand the machine remove Handle section and stand the machine 1 The component parts for Tool retaining mechanism can be disassembled as illu...

Page 6: ...l retainer in place round side of Tool holder Tool retainer Note in Assembly of Tool retainer and Tool retainer shaft round side of Tool holder Tool retainer pole Tool holder Tool retainer shaft Tool...

Page 7: ...36 Shoulder ring 32 Sleeve 43 Sleeve 43 Impact bolt Impact Bolt Sleeve 43 and Impact bolt are not interchangeable between CB models and C models HM1307CB HM1317CB HM1307CB HM1317CB HM1307C HM1317C HM1...

Page 8: ...hanism falls off Crank housing by laying the machine Remove four M8x40 Hex socket head bolts with Hex wrench 6 And separate Barrel section from Crank housing complete Put 1R023 on Crank housing comple...

Page 9: ...4 or 1R356 Set 1R306 to Arbor press Attach two pcs of 1R024 or 1R356 to 1R306 keeping 67mm distance Stand the Cylinder on the O ring 45 assembled side Pressing down Shoulder sleeve remove Ring spring...

Page 10: ...re Barrel with Bolts Fig 18 Rear cover with AVT mark Distinction mark Assemble Barrel facing the distinction mark to Rear cover side And secure it with M8x40 Hex socket head bolts Rear cover with AVT...

Page 11: ...complete on 1R217 press Crank shaft with Arbor press Crank shaft can be removed from Helical gear 47 Ball bearing 6204LLB still remains in Crank housing complete Detach Spiral spring from Carbon brus...

Page 12: ...ion as illustrated in Figs 21B and 22B Fig 21B Fig 22B Retaining ring S 8 Needle bearing 1813 Ball bearing 608ZZ Shoulder washer 8 1R045 1R346 1R291 Crank cap cover Bearing box complete M6x30 Hex sock...

Page 13: ...sing complete on 1R217 press Crank shaft with Arbor press Crank shaft can be removed from Helical gear 47 Ball bearing 6204LLB still remains in Crank housing complete 1R246 1R252 5 Inserting 1R252 fro...

Page 14: ...plete Crank shaft Crank shaft Crank shaft 1R031 Supporting the assembled Crank shaft with 1R252 mount Helical gear 47 to the Crank shaft by pressing it with Arbor press Helical gear 47 Ball bearing 62...

Page 15: ...and 1R023 Washer guide Note Do not forget to mount the following small parts Flat washer 15 between Ball bearing 6203LLU and Fan 80 Refer to the right illustration in Fig 29 Wave washer 19 and Washer...

Page 16: ...lustrated in Fig 30 Unscrew 4x18 Tapping screw Remove Handle cover by levering up with slotted screwdriver inserted into the gap between Handle and Handle cover 4x18 Tapping screw Disconnect Switch le...

Page 17: ...N m M4 x 16 1 13 16 N m M6 x 20 3 35 35 52 52 74 74 108 108 82 82 117 117 Crank housing complete Bearing box complete Rear cover Handle Controller Note Apply ThreeBond 1342 or Loctite 242 to the threa...

Page 18: ...1 6 4 LOT No LOW 6 3 1 9 1 7 2 LOT No HIGH HM1317C HM1317CB with No Load Speed Suppression 6 3 1 9 1 9 8 100 130V 200 240V LOT No LOW 6 3 1 9 2 0 3 LOT No HIGH Distinctive Indication in Low Voltage a...

Page 19: ...igtail connected portion to Rear cover side when inserting Carbon brush into Brush holder Brush holder unit Motor housing Fig D 3 Switch Put Controller s lead wire into the slit of Sponge Sponge Do no...

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