Mitsubishi 6M60-TL Service Manual page 286

CAUTION
• When the armature is removed, the ball may come out with it. Take care not to lose the ball.
• Do not remove the bearings and unless defects are evident.
• The rubber packing is serviceable if any defect is not found in it during disassembly.
• It is not necessary to remove the pinion when only the motor section needs to be disassembled for inspection, like
when inspecting brushes and related parts.
• Be sure to remove the pinion before disassembling any other parts.
Assembly sequence
Follow the disassembly sequence in reverse.
CAUTION
• Whenever the magnetic switch is replaced, the pinion gap must be adjusted.
Service standards (Unit: mm)
Location
– Pinion gap
No-load
–
characteristics
9 Brush spring pressure
10, 12 Brush length
Commutator outside diameter
Runout of commutator periphery
17
Mold depth between segments
Lubricant and/or sealant
Mark
Lever contact surface of magnetic switch
Sliding surfaces of gear shaft and overrunning
clutch
Sliding surfaces of lever and overrunning clutch
Sliding surfaces of armature and gear shaft
Ball
Teeth of planetary gear and internal gear
Washer
Oil seal
Splines of overrunning clutch
Special tools
Mark
Bearing puller and
installer
A: Bearing puller and
installer
B: Bearing installer
Maintenance item
Current
With 23V applied
Rotation speed
Points of application
Tool name and shape
Standard value
0.5 to 2.0
85 A or less
3300 rpm or higher
29.2 to 39.4 N {3 to 4 kgf}
18
32
–
–
Specified lubricant and/or sealant
Multipurpose grease
[NLGI No. 2 (Li soap)]
Molykote AG650
Multipurpose grease
[NLGI No. 2 (Li soap)]
or grease attached to oil seal
Multemp OA-171
(Kyodo Yushi Co., Ltd.)
Part No.
MH063597
Removal and installation of front
A: MH063615
bearing
B: MH063629
54
Limit Remedy
– Adjust
–
Inspect
–
13.7 N
Replace
{1.4 kgf}
11 Replace
31.4
Replace
0.1 or
higher
Correct or
0.2 or less
replace
Quantity
As required
As required
As required
As required
Application
54-17