Makita HP2050 Technical Reference - Page 5

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Repair ( 3) Disassembling gear section See Fig. 3. 1. Separate gear housing cover from gear housing. 2. Pull out lock plate. 3. Then change lever B, pin, rack 12 with change plate B and spur gear 29-37 can be disassembled from gear housing. Gear housing Spur gear 29-37 Lock plate Gear housing cover P 5 / 17 Change lever B Rack 12 Pin Change plate B Fig. 3 ( 4) Assembling gear section 1. Assemble the spindle section to gear housing as illustrated Fig. 4 below. Bearing retainer 20-36 Oil seal 19 Gear housing Ring spring 11 Spindle section (including conical compression spring 15-2, cup washer 15, ball bearing 6202LLB and cam A) Fig. 4 When assembling bearing retainer 20-36 and oil seal 19, refer to "( 6) Assembling bearing retainer 20-36 and oil seal 19" at page 7. 2. Insert change plate B into rack 12 as illustrated Fig. 5 right. Rack 12 Change plate B Fig. 5 3. Set the above assembled one to spur gear 29-37 as illustrated Fig. 6 right. Spur gear 29-37 4. Make sure that leaf spring is assembled in gear housing in advance. If not, assemble it. Assemble spur gear 29-37 to spindle and at the same time, assemble rack 12 w/ change plate B to gear housing as illustrated in Fig. 7 right. Fig. 6 Gear housing Leaf spring Spur gear 29-37 Spindle Rack 12 with change plate B Fig. 7

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R
epair
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( 3) Disassembling gear section
See Fig. 3.
1. Separate gear housing cover from gear housing.
2. Pull out lock plate.
3. Then change lever B, pin, rack 12 with change plate B and spur gear 29-37
can be disassembled from gear housing.
( 4) Assembling gear section
1. Assemble the spindle section to gear housing as illustrated Fig. 4 below.
Gear housing cover
Gear housing
Lock plate
Change lever B
Pin
Rack 12
Change plate B
Spur gear 29-37
Ring spring 11
Fig. 3
Fig. 4
Gear housing
Bearing retainer 20-36
Spindle section (including conical
compression spring 15-2, cup washer 15,
ball bearing 6202LLB and cam A)
2. Insert change plate B into rack 12 as illustrated Fig. 5 right.
3. Set the above assembled one to spur gear 29-37 as illustrated Fig. 6 right.
4. Make sure that leaf spring is assembled in
gear housing in advance.
If not, assemble it.
Assemble spur gear 29-37 to spindle
and
at the same time, assemble rack 12 w/ change
plate B
to gear housing as illustrated in Fig. 7 right.
Rack 12
Change plate B
Fig. 5
Spur gear 29-37
Fig. 6
Leaf spring
Spur gear 29-37
Rack 12 with change plate B
Gear housing
Spindle
Fig. 7
Oil seal 19
When assembling bearing retainer 20-36 and oil seal 19,
refer to "( 6) Assembling bearing retainer 20-36 and oil seal 19" at page 7.