Makita BHR242 Technical Information page 10

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3]-3. Change lever
DISASSEMBLING
(1) Remove dust and dirt from Change lever and the grooved area on Motor housing.
(2) Set Change lever to Hammer mode. (Fig. 27)
Note: If it is hard to set Change lever to Hammer mode because of getting stuck in the halfway,
turn the bit holder section / holder section of the machine by hand and then try again.
(3) While pushing Lock button into Change lever, turn Change lever to the right fully over the position of Hammer mode.
(Fig. 28)
(4) Pull out Change lever from the position drawn in Fig. 29. If it is impossible to remove Change lever by hand, lever it up
with slotted screwdriver.
Note: Be careful not to remove Change lever without placing as drawn in Fig. 29.
The exact positioning prevents Change lever from breakage.
(5) Disassemble Change lever section as drawn in Fig. 2.
Fig. 27
Hammer mode
Change lever Lock button
ASSEMBLING
(1) Assemble the following parts to Change lever.
▪ Lock button ▪ Compression spring 3 ▪ Change lever cover ▪ O ring 21 (Apply Makita lubricating oil VG100.)
▪ Thin washer 16 ▪ Compression spring 5 ▪ Push corn
(2) Apply Makita grease RB No. 00 to Push corn.
(3) Fit the top of Push corn into the groove of Clutch cam A, and insert the hinge of Change lever into the hole of
Motor housing while keeping the exact position drawn in Fig. 29. (Refer to Fig. 30.)
(4) While pushing Lock button, turn Change lever to the left.
Note: Make sure that Change lever works properly by setting it to Drill mode/ Rotary hammer mode/ Hammer mode.
If it is hard to set Change lever to each mode because of getting stuck in the halfway; try 1 or 2 as follows:
1. Turn the bit holder section / holder section of the machine by hand and then try again.
2. Install battery and pull Switch very slightly a second to run the machine.
Fig. 30
Change lever section
Fig. 28 Fig. 29
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