Hitachi H 45ME, Service Manual

-13- 

• Specified grease (for the hammer and hammer drill) 

 
 
 
Fill specified grease (for the hammer and hammer drill) to the following point. 
• Fill 40 g of specified grease in the Crank Case 

[91]{88}

 on the Connecting Rod Ass'y 

[42]{39}

 side.

 
Apply specified grease (for the hammer and hammer drill) to the following points. 
• Apply specified grease to the inside and outside of the Cylinder 

<33>

, sliding portion of the Striker 

<35>

, 

and O-ring (S-40) 

[89]{86}

 of the Striker 

<35>

. 

• Apply specified grease to the inside of the Connecting Rod Ass'y 

[42]{39}

, inside of the Needle Bearing 

[43]{40}

, outside of the Piston 

[41]{38}

, and O-ring (S-40) 

[89]{86}

 of the Piston 

[41]{38}

.

• Apply specified grease to the sliding portion of the Second Hammer 

<26>

 and O-ring (C) 

<25>

 of the 

Second Hammer 

<26>

. 

• Apply specified grease to the inner lips of Oil Seal (B) 

[90]{87}

, inside of the metal in the Crank Case 

[91]{88}

, inside of the Weight 

[38]

, Weight Spring 

[37]

, Damper 

<28>

, Retainer Damper (B) 

<22>

, 

Damper (C) 

<30>

, and inside and outside (polished surfaces) of the Retainer Sleeve 

<24>

. 

 
Fill or apply Hitachi Motor Grease No. 29 to the following points. 
• Fill a total of 20 g of Hitachi Motor Grease No. 29 in the Crank Case 

[91]{88} 

on the First Gear 

[96]{93} 

side and the Gear Cover 

[99]{96} 

side.

• Apply Hitachi Motor Grease No. 29 to the Needle Bearing (M661) 

[97]{94}

, pinion portion of the Rotor 

[102]{99}

, Bit Lock 

<23>

, and Steel Ball D5 

<7>

. 

Net weight 

Code No. 

500 g 

980927 

30 g 

981840 

CAUTION: Both viscosity and consistency of the specified grease are optimized for the 

demolition hammer Models H 45MEY and H 45ME in order to prolong the service 
life. Therefore, applying ordinary grease intended for other models (e.g. Model 
DH 40MEY) to the Models H 45MEY and H 45ME may dramatically shorten the 
product’s service life. 

Lubrication points and types of lubricant

 30 g  

 500 g