Makita HP2050F, HP2051F specifications Repair

P 2 /17

Repair

< 1 > Lubrication

Apply MAKITA grease N No.1 to the following portions marked with black triangle to protect parts and machine from unusual abrasion. See Fig. 1.

Gear housing

Spindle

Cam

Apply 25g of MAKITA grease N No.1 to the inner part of gear housing.

Gear housing

Spur gear 29-37

Change lever B

Fig. 1

< 2 >Assembling and disassembling

( 1 ) Disassembling drill chuck See Fig. 2.

1.Hold the flat portion of spindle with No.1R139 "drill chuck extractor" which is fixed with vise.

2.Insert No.1R298 "hex wrench" into drill chuck and grip it firmly with drill chuck.

3.Turn No.1R298 "hex wrench" anti-clockwise, with No.1R223 "torque wrench" to which No.1R224 "ratchet head" is attached. Then, drill chuck can be disassembled from spindle.

In case of broken drill chuck, it may be impossible to grip hex wrench with drill chuck.

If so, firmly grip drill chuck with pipe wrench. And turn the pipe wrench anti-clockwise.

So, the drill chuck can be disassembled.

( 2) Assembling drill chuck See Fig. 2.

1.Preset the torque level of No.1R223 "torque wrench" to 35.7N.m - 45.9N.m (350kgf.cm - 450kgf.cm).

2.Hold the flat portion of spindle with No.1R139 "drill chuck extractor" which is fixed with vise

3.Insert No.1R298 "hex wrench" into drill chuck and grip it firmly with drill chuck.

4.Turn No.1R298 "hex wrench" clockwise, with No.1R223 "torque wrench" to which No.1R224 "ratchet head" is attached. Then, drill chuck can be assembled to spindle.

No.1R298 Hex wrench

Fastening

No.1R139 Drill chuck extractor

No.1R223	Loosening
Torque wrench

No.1R224

Ratchet head

Fig. 2