Parts diagram may help. This is a foreign language but photos may suffice. https://www.google.co.za/search?hl=en&biw=853&bih=390&tbm=isch&sa=1&ei=MUh3Wp-ZN8rGwQKwt6vACA&q=hilti+te+804+parts&oq=%22hilti+te+804+%22&gs_l=psy-ab.1.4.0j0i30k1l2j0i24k1l3.140623.140623.0.146061.1.1.0.0.0.0.354.354.3-1.1.0....0...1c.2.64.psy-ab..0.1.353....0.1jGhrW7ZpGQ#imgrc=nKRz1BnKJcfSfM:
Answers & Comments
Parts diagram may help. This is a foreign language but photos may suffice. https://www.google.co.za/search?hl=en&biw=853&bih=390&tbm=isch&sa=1&ei=MUh3Wp-ZN8rGwQKwt6vACA&q=hilti+te+804+parts&oq=%22hilti+te+804+%22&gs_l=psy-ab.1.4.0j0i30k1l2j0i24k1l3.140623.140623.0.146061.1.1.0.0.0.0.354.354.3-1.1.0....0...1c.2.64.psy-ab..0.1.353....0.1jGhrW7ZpGQ#imgrc=nKRz1BnKJcfSfM: