Makita SA7000 Technical Information page 3

R
epair
ASSEMBLING
Do the reverse of the disassembling steps as described below:
1) Insert Ball bearing 6201LLB straight into Gear housing cover. Put 1R035 on arbor press, then put Gear housing cover
on 1R035. Press-fit Armature to Gear housing cover using arbor press. (Fig. 5)
2) Install Spiral bevel gear 9 on Armature shaft, and tighten Hex nut M6 securely with a wrench 10.
Then install the assembly of Armature and Gear housing cover on Motor housing, and align the screw holes on Gear
housing cover with those of Motor housing.
3) Aligning the protrusion on Gear housing with that on Motor housing, fit Gear housing to Gear housing cover. (Fig. 6)
Fasten Gear housing to Gear housing cover and Motor housing with four 5x30 Tapping screws.
4) Install Head cover and Grip 36 complete.
Fig. 5
Armature
[2]- 2. Replacing Spiral Bevel Gear 43 and Ball Bearing 6202DDW
DISASSEMBLING
Note: Disassembling can be done without disassembling Gear housing section.
1) Remove Sanding pad.
2) Using a Makita impact driver and 1R229, remove four M5x16 Hex socket head bolts that fasten Bearing box
to Gear housing.
3) Insert two slotted screwdrivers into the two slits in diagonal opposite positions between Bearing box and Gear housing.
Twist the two screwdrivers at the same time till Bearing box is lifted up approximately 3mm.
Then insert the screwdrivers further into the slits, and remove Gear housing from Gear housing cover by lifting it
up with the screwdrivers. (Fig. 7)
Fig. 7
Bearing box
Gear hosing
Gear housing cover
1R035
Slotted screwdriver
Fig. 6
Gear housing
Align the projection on Gear housing
with that on Motor housing.
P 3/ 6
Gear housing cover
Motor housing