DEALER SERVICE
The information in this section is written for dealer ser- vice personnel. The repair described herein requires special skills and tools. If your shop is not properly equipped or your mechanics are not properly trained in this type of repair, you may be time and money ahead to replace complete assemblies.
Never work under a raised loader. Always lower loader to the ground with bucket or loader attach- ment in full
Never allow anyone to get under the loader bucket or reach through the lift arms when the bucket is raised.
Keep all persons away from operator control area while performing adjustments, service, or maintenance.
Do not disconnect hydraulic lines until all sys- tem pressure is relieved. Lower unit to ground, stop engine, and operate all hydraulic control levers.
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.
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.
CAUTION
Always wear relatively tight and belted clothing to avoid getting caught in moving parts. Wear sturdy,
CYLINDER SERVICE
The cylinders are designed to be reliable and easy to service. If a cylinder should malfunction during the war- ranty period, return the complete cylinder assembly, without disassembling, to your authorized service department or contact your authorized service depart- ment for instructions. Unauthorized disassembly of a cylinder in the warranty period will VOID WARRANTY.
NOTE: Repair to cylinders is limited to replacing seals, wear rings, and
CYLINDER REPAIR
Threaded Rod Guide Cylinders
Threaded guide cylinders for the LF138 and LF156 use two different styles of seals.
Disassembly
On threaded guide type cylinders, unscrew guide (5) using a spanner wrench, or carefully use a punch and hammer. (Spanner wrench 1021841 is available from Woods to help with these procedures.) Pull on rod (1) to remove parts from barrel.
Clamp cross pin end of rod assembly (1) in a vise with protective jaws. Heat threads to break thread locking compound loose. Unscrew piston (6) from end of rod assembly using a spanner wrench, or carefully use a punch and hammer. Remove rod guide (5) from rod.
Remove and discard all seals, wear rings and
Inspect inside diameter of barrel. Replace cylinder if damaged.
Assembly
For these assembly instructions the front surface of the threaded rod guide with two holes will be referred to as the "rod guide face".
Lubricate
For bucket cylinders (Figure 31) install rings into the third and fourth grooves from the rod guide face.
26 Dealer Service | MAN0556 (9/21/2007) |
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