OWNER SERVICE
The information in this section is written for operators who possess basic mechanical skills. If you need help, your dealer has trained service technicians available. For your protection, read and follow the safety informa- tion in this manual.
Keep hands and body away from pressurized lines. Use paper or cardboard, not hands or other body parts to check for leaks. Wear safety goggles. Hydraulic fluid under pressure can easily penetrate skin and will cause serious injury or death.
Make sure that all operating and service person- nel know that if hydraulic fluid penetrates skin, it must be surgically removed as soon as possible by a doctor familiar with this form of injury or gan- grene, serious injury, or death will result. CON-
TACT A PHYSICIAN IMMEDIATELY IF FLUID ENTERS SKIN OR EYES. DO NOT DELAY.
Before working on backhoe, extend boom and dipperstick and place bucket on ground. Make sure that all system pressure has been relieved by oper- ating controls before maintenance, service, or dis- connecting any hydraulic lines.
CAUTION
Always wear relatively tight and belted clothing to avoid getting caught in moving parts. Wear sturdy,
RELIEF VALVE
This valve is
Figure 15. Relief Valve
HYDRAULIC HOSES AND FITTINGS
NOTICE
■Fittings with
Hydraulic hoses are severely worked on a backhoe. Examine them daily and replace if necessary. Hose routing is very important. Make certain hoses can move freely, without kinking, and cannot be damaged or cut by backhoe action.
When tightening hoses and fittings, always use two wrenches: one to hold hose and one to tighten fitting. This will prevent hose from twisting and kinking.
Always back locknut off and screw fitting all the way in for fittings that use
MAN0306 (Rev. 5/23/2008) | Owner Service 19 |
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