Lubrication Points And Types Of Lubricant - Hitachi DH 40MC Service Manual

Lubrication points and types of lubricant

Specified grease (for hammer and hammer drill)
• Fill 20 g of specified grease in the Cylinder Case [22].
• Fill 69 g of specified grease in the Crank Case Ass'y [91] on the Connecting Rod [48] side.
• Apply specified grease to the inside and outside of the Cylinder [36].
• Apply specified grease to the inner diameter portion of the Connecting Rod [48].
• Apply specified grease to the sliding portion of the Second Hammer [30] and O-ring (C) [29] of the
Second Hammer [30].
• Apply specified grease to the sliding portion of the Striker [34] and O-ring [35] of the Striker [34].
• Apply specified grease to the outer diameter portion of the Piston [47] and O-ring [45] of the Piston
[47].
• Apply specified grease to the inner lips of Oil Seal (A) [97].
• Apply specified grease to the inner lips of Oil Seal (B) [90].
• Apply specified grease to the inner and outer diameter portions of the Bevel Gear [43].
• Apply specified grease to the Thrust Washer [44].
• Apply specified grease to the inner lip of the Oil Seal [20].
• Apply specified grease to the inside of the Clutch [41].
• Apply specified grease to the Damper [32].
• Apply specified grease to Retainer Damper (B) [24].
Hitachi Motor Grease No. 29
• Fill a total of 20 g of Hitachi Motor Grease No. 29 in the Crank Case Ass'y [91] on the First Gear [123]
side and the Gear Cover [108] side.
• Fill a total of 5 g of Hitachi Motor Grease No. 29 in the slotted groove and the 6 mm dia. holes of the
Gear Holder [102].
• Apply Hitachi Motor Grease No. 29 to the Needle Bearing [124].
• Apply Hitachi Motor Grease No. 29 to the pinion portion of the Armature [74].
• Apply Hitachi Motor Grease No. 29 to the Bit Lock [27].
Fig. 13 • Specified grease (for hammer and hammer drill)
CAUTION: Both viscosity and consistency of the specified grease are optimized for the
rotary hammer Model DH 40MC in order to prolong the service life. Therefore,
applying ordinary grease intended for other models to the Model DH 40MC may
dramatically shorten the product's service life.
500 g 70 g
Net weight
500 g
70 g
30 g
-8-
30 g
Code No.
980927
308471
981840