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R
epair
Always follow the instructions of the SAFETY RULES and OPERATING INSTRUCTIONS described in the
instruction manual. Also refer to the instruction manual for how to replace and adjust the planer blades.
[1] Necessary Repairing Tools
Bearing Setting Plate (No.1R033) ......... For press-fitting ball bearing
Bearing Extractor (1R269)..................... For removing ball bearing
[2] Lubrication
Lubricate the sliding surfaces of Front base and Main frame with an appropriate amount of lubricant such as
Machine oil #120.
[3] Disassembling/Assembling
CAUTION: Before starting repair, be sure to unplug the tool and remove planer blades from the tool for safety.
<1> Replacing Poly V-Belt
Disassembling
1. Remove Belt cover.
2. When replacing parts such as armature or drum, you will
probably reuse the Poly V-belt once removed.
In this case, remove the belt by turning V pulley 4-37
in the direction of the arrow while lifting up the belt with
a Lock nut wrench of a Makita grinder. (Fig. 1)
When you replace the Poly V-belt with a brand-new one,
remove simply by cutting the worn belt with cutting pliers.
Assembling
1. Remove Belt cover.
2. Install Poly V-belt 4-241 securely on V pulley 4-20L,
and then install the belt on V-pulley 4-37 while turning
V pulley 4-37 in the direction of the arrow. (Fig. 2)
Note: It will help you easily install Poly V-belt 4-241
to follow the instruction described below;
In order not to allow the belt to be out of the
V-grooves on the two V pulleys, while turning
V pulley 4-37, press the half of the belt opposite
to the other half being installed as illustrated
in Fig. 2.
<2> Replacing Armature and Drum
Disassembling
1. Remove Chip cover, and then remove Brush holder caps carbon brushes.
2. Remove six M4x25 Pan head screws fastening Bracket complete to Main frame complete as illustrated to left
in Fig. 3.
3. Holding the handle, turn the tool so that it stands on Base. With plastic or wooden hammer, hit Main frame
complete alternately at the two portions designated by the black arrow as illustrated to right in Fig. 3.
The assembly of Bracket complete, Drum and Armature will then be removed from Main frame complete.
4. Remove V pulleys from Bracket complete as described below;
Hold Drum or Armature assembly with rags. And then using a wrench 13, remove V pulley 4-37 (right-handed)
by turning it counterclockwise, and V pulley 4-20L (left-handed) by turning it clockwise.
Fig. 3
Pan head screw M4x25 (6 pcs)
(continued to next page)
Bracket complete
Fig. 1
Lock nut
wrench
Fig. 2
Hit
P 2 / 4
V pulley 4-37
Poly V-belt
4-241
Press the half of the belt
against Bracket complete.
V pulley 4-20L
Bracket complete
Hit
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