P 4 / 7
R
epair
Tighten the following Tapping screws to each recommended torque (Fig. 11);
(1) PT3x16 (8 pcs) for fastening Housing halves together ...... 1.1 - 1.3 N.m (11 - 13 kgf.cm)
(2) PT3x16 for fastening Stopper to Housing .......................... 0.7 - 0.9 N.m (7.1 - 9.2 kgf.cm)
(3) PT3x10 for fastening LED circuit to to Housing ............... 0.7 - 0.9 N.m (7.1 - 9.2 kgf.cm)
(4) ST3x8 for fastening FET spacer to Yoke unit ..................... 1.1 - 1.5 N.m (11 - 15 kgf.cm)
[1] Tightening Tapping Screws
Fig. 11
When fastening Internal gear case to Housing, be sure to
follow the instructions below.
*Do not reinstall M4x12 Pan head screws removed from
Internal gear case because they are adhesive-coated screws.
Always use brand-new M4x12 pan head screws.
*Tighten four M4x12 pan head screws to the recommended
torque of 0.88 - 1.8 N.m (9.0 - 18 kgf.cm).
Note: Remember to use a criss-cross tightening pattern.
[2] Fastening Internal Gear Case to Housing
(Fig. 12)
(4)
FET
(Field effect
transistor)
FET spacer
Yoke unit
(2)
(1)
(3)
Stopper
LED circuit
Housing (R)
Housing (L)
ASSEMBLING
Before assembling, apply Makita grease N. No.2 to the
following parts (Fig. 13);
(1) Top of the Spindle where Anvil contacts ........ 0.5 g
(2) Steel ball 5.6 (2 pcs) ....................................... 0.5 g
(3) Steel ball 3.5 (24 pcs) ..................................... 0.5 g
(4) Spur gear 22 (2 pcs) ........................................ 2.0 g
[3] Lubrication of Hammer Section
Fig. 13
Fig. 12
(2)
(1)
(3)
(4)
Pan head screw M4x12
Internal gear case
