Lubrication Points And Types Of Lubricant - Hitachi DH 18DPA Service Manual

Lubrication points and types of lubricant

Put grease for rotary hammer (Code No. 335782 (60 g) or 335781 (500 g)) in the following portions.
• Ball portion of the Reciprocating Bearing [45]{45} (Fig. 21) ························································ 2 g
• Cylinder of Inner Cover (A) Ass'y [49]{49} (Fig. 26) ·································································· 6 g
• Gear Cover [9]{9} (Fig. 27) ······························································································· 15 g
NOTE: • Be careful not to leak grease into the Cylinder [20]{20}.
• Put grease in the Gear Cover [9]{9} so that the tooth plane of the Second Gear [18]{18} is
covered with grease.
Apply grease for rotary hammer to the following portions.
• Periphery of the Second Hammer [22]{22} (Fig. 18), O-ring (B) [21]{21}, O-ring [23]{23}, and Hammer
Holder [24]{24}
• Clutch claws of the Second Gear [18]{18} and Cylinder [20]{20} (Fig. 19)
• Tooth plane of the Second Gear [18]{18} ············································································ 1.5 g
• Inner circumference of the Cylinder [20]{20} (sliding portion of the Piston [31]{31}) (Fig. 20)
• Oil seal lip in the Gear Cover [9]{9} and the inner circumference of the 13 mm dia. hole of the Gear Cover
[9]{9}
• Damper [26]{26}, Thrust Washer (A) [27]{27}, and Thrust Washer (B) [28]{28}
• Steel Ball D7.0 [19]{19}
• Bore surface and arm of the Reciprocating Bearing [45]{45} (Fig. 21), inner and outer surfaces of the
Needle Cage [46]{46}, Thrust Washer (C) [47]{47}
• Reciprocating Bearing [45]{45} rotating shaft and spline of Second Shaft (A) [43]{43} (Fig. 22)
• Tooth plane of the Bevel Gear [48]{48} (Fig. 23) ··································································· 1.5 g
• Tooth plane of the rotor ass'y pinion of Inner Cover (A) Ass'y [49]{49} (Fig. 26)
• Inner circumference of the needle bearing of Inner Cover (B) [35]{35}
• Outer surfaces of the Piston [31]{31}, inner and outer surfaces of the Piston Pin [41]{41}, and Washer
[42]{42} (Fig. 24)
• Outer surface of the Striker [29]{29} and O-ring (A) [30]{30} for the Striker [29]{29} (Fig. 25)
Apply grease SEP-3A (Code No. 930035 (100 g) or 930038 (2.5 kg)) to the following portion.
• O-ring (1AP-10) [12]{12} for the Change Lever [11]{11}
Apply grease for cordless rotary hammer (Code No. 376690 (50 g)) to the following portion.
• Terminal area of the battery terminal and the specified area of the cable sleeve surface (Fig. 12) ···· 0.3 g
Fig. 17 • Grease for rotary hammer
500 g
CAUTION: The viscosity and consistency of this grease are optimized for our rotary hammers
in order to prolong the service life. Therefore, applying other grease to the Models
DH 18DPA and DH 12DD may significantly shorten the service life.
60 g
-13-
Net weight Code No.
500 g 335781
60 g 335782