Maktec MT902 - Page 3

P 3/ 9
Repair
[4] DISASSEMBLY/ASSEMBLY
[4]-2. Small spiral bevel gear, Armature, Ball bearings 6301ZZ and 6200ZZ (cont.)
DISASSEMBLING
(2) Disassemble Armature and Small spiral bevel gear. (Fig. 2)
(3) Disassemble Ball bearings 6301ZZ and 6200ZZ. (Fig. 3)
Holding M8 Hex nut with Wrench 13,
turn Armature counterclockwise by hand.
M8 Hex nut can be removed.
Wrench 13 for holding
M8 Hex nut
M8 Hex nut
Pull off Armature while holding
Small spiral bevel gear.
Small spiral bevel gear
M8 Hex nut
Armature
Fig. 2
Note: If it is difficult to pull off Armature by hand, do the following steps.
1. Lubricate Small spiral bevel gear and Armature shaft with spray lubricant.
2. Wrap the gear with cloth to protect the gear teeth.
3. By
using water pump pliers, firmly grip the gear wrapped with cloth and then turn and pull Armature.
Retaining
ring R-42
Flat
washer 20
1. Remove Retaining ring R-42
with 1R005.
2. Remove flat washer 20.
3. Assemble Armature into Gear housing
complete then set Small spiral bevel gear
and M8 Hex nut in place on Armature
shaft temporarily.
1R005
Ball bearing
6301ZZ
Ball bearing 6301ZZ
M8 Hex nut
Small spiral
bevel gear
4. Tapping end of Gear housing
complete with Plastic hammer.
Ball bearing 6301ZZ can be
removed together with Armature.
5. Remove M8 Hex nut and Small spiral bevel gear again.
Ball bearing 6301ZZ can be removed by hand.
M8 Hex nut
1R269
Ball bearing 6301ZZ
Ball bearing 6200ZZ
6. Remove Ball bearing 6200ZZ with 1R269.
Small spiral bevel gear
Fig. 3