Installing a Bosch service kit in a Bosch GSH 11 E hammer.

These bosch GSH 11 E hammers can get quite bit of abuse over their lives and do require a service kit if the hammer action becomes weak or stops completely.
This 2014 hammer is still in quite good condition but is no longer hammering. A service kit is all it needs to get it hammering like new again.
It is not unusual for these hammers to come in for repair that are over 20 years old.
When the inside is excessively worn or the grease is burnt up, it's a good idea to also cheamge the top needle bearing also.
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