What gear oil in Hitachi H65-SD2 Demolition Hammer

Archived from the Tools In Action forum (Hitachi/Metabo). This thread is read-only.

Jack of all Master of noneMember since Mar 2020Mar 6, 2020 1:46 PM CT

I have a Hitachi H65-HD2 demolition hammer drill that I am working on. The old manual for it does not show what oil to use in the gearbox. The newer models look like they use a grease, not an oil. Any help would be appreciated.

Thanks in advance.

Tom

methodMember since Aug 2018Jun 6, 2020 11:24 PM CT

Any type of gear oil should work, it will not be critical to use the manufacturer specific oil. Just check the viscosity of the existing oil and pick a thin or thick oil based on the feel of it.

steve sandellsMember since Jun 2020Jun 30, 2020 4:02 AM CT

Similar to last query, I have a H65SB Hitachi jackhammer and it looks like it had grease in the housing assembly. would this be right?

methodMember since Aug 2018Jun 24, 2021 2:03 AM CT

steve sandells wrote:

On 6/30/2020 at 7:02 PM, steve sandells said:

Similar to last query, I have a H65SB Hitachi jackhammer and it looks like it had grease in the housing assembly. would this be right?

Anything should work. The idea is to stop seizing and wear. Grease will eventually get hot and melt everywhere doing the same thing as oil. When I cleaned my old metabo grinder, it was also packed with grease in the housing.