7. Pass chain back to ram and secure in respective slots in double chain plate.
8. Take up slack in chains and make necessary adjustments so that chain pulls evenly.
9. Hold pump in hands with hose downward, close relief valve, and begin pumping slowly while
watching seat movement. Movement of plunger pulls chain rather than pushes. Be aware that shock
absorber bumpers or air bags may activate if pressure is applied to bumper.
10. Monitor door movement to observe that the chain is not slipping from the door.
The instructor should show any of those items in the terminology section that are available and how they are attached. The instructor should also demonstrate the various techniques and applications. The students should then be given an opportunity to demonstrate their understanding of the classroom material and demonstrations.
Depending upon the size of the group, more than one set of equipment and additional vehicles may be required. There should also be adequate instructional resources to maximize safety and minimize tool damage. Summarize the material in the lesson and discuss the lessons learned from the practical session.
The safety precautions associated with the use of porto-powers should be stressed. The potential for a difference between the pump and attachments should also be stressed so that the student better understands the capabilities and limitations of the system.
Porto-Power Operation and Use
• Introduction to hydraulically powered tools
• Components of a porto-power
• Operation of the porto-power
• Practical applications
Stress the importance of regular maintenance of equipment, practice, and a general understanding of the uses and limitations of the various components of the porto-power system.