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P 4/ 17
Repair
DISASSEMBLING
(1) Disassemble Chuck section. (Figs. 2, 3 and 4)
(2) Removing Retaining ring R-42, disassemble Tool holder section and take out Impact bolt. (Fig. 5)
(3) Remove Fluoride ring 28 and O ring 23 from Impact bolt when Fluoride ring 28 is worn out as illustrated in Fig. 6.
2. Remove Flat washer 29
and Rubber ring 28.
3. Pull off Tool retainer
from Barrel.
Fig. 5
Fig. 6
[3] DISASSEMBLY/ASSEMBLY
[3]-2 Tool holder section
1. Tool holder is fixed to
Barrel with Retaining
ring R-42.
Remove the Retaining
ring R-42 with 1R005.
Barrel
Tool holder
Impact bolt
O ring 38
5. Remove O ring 38
from Tool holder.
4. Remove Impact bolt from
Tool holder by pushing
out with Screwdriver.
Retaining
ring R-42
Flat washer 29
Flat
washer 29
Rubber ring 28
Barrel
Tool holder
O ring 23
(color: orange)
Fluoride ring 28
(the worn one)
Impact bolt
Fig. 7
ASSEMBLING
Taper sleeve (No.1R214)
Impact bolt
Fluoride ring 28 is protruded
from the groove on Impact bolt.
groove on Impact bolt
Fluoride ring 28
O ring 23
groove on Impact bolt
O ring 23
Fluoride ring 28 is fit into
the groove on Impact bolt.
Outer surface of Fluoride ring 28
(1) When particles and dust are in the inside of Barrel and Crank housing, be sure to clean them up.
(2) Fit O ring 23 into the groove of Impact bolt, and then put Fluoride ring 28 on O ring 23 as illustrated in Fig. 7.
(3) Assemble Tool holder and Chuck section by taking the reverse step of Figs. 5, 4, 3 and 2.
Note: Do not apply any grease to O ring 23, or the Fluoride ring will not shrink even using Taper sleeve.
Be sure to apply Makita grease R.No.00 to the outer surface of Fluoride ring 28 after fitting into Impact bolt.
When orange colored O ring 23 can be seen through Fluoride ring 28,
Fluoride ring 28 and O ring 23 have to be replaced with new ones.
1) Insert Impact bolt securely into
Taper Sleeve from HR5001C
marking side.
2) Hold the Impact bolt for at least
60 seconds.
3) Then pull Impact bolt out of
Taper sleeve.
Note: Once Fluoride ring is expanded,
it does not shrink by itself.
If you insert Impact bolt into Tool
holder without shrinking Fluoride
ring, Fluoride ring will be pinched
and broken, or Impact bolt will
loose smooth sliding action.
Note: If it is hard to pull out Impact bolt,
insert a round bar from the opposite
side and hit it slightly.
Note: If it is hard to pull out
Impact bolt, insert a round
bar from the opposite side
and hit it slightly.