LEVER AS 2141492 - Caterpillar

Illustration 1. Early bottom guard group which has a 9P9943 Guard Assembly.
Illustration 2. Current bottom guard group which has a 3T2224 Guard Assembly.When installed, the 9P9989 Guard Assembly is in front of the pivot shaft and either the 9P9943 or the 3T2224 Guard Assembly is under the pivot shaft. The only connections between the two units are three support brackets at the front of the 9P9943 or 3T2224 Guard Assembly. Some servicemen think these brackets look like hinges, but they are not. They are only supports. The brackets are used to permit easier access to the pivot shaft and to permit the guard and guard assembly to move separately as the the machine twists during operation.
The rear guard does not have hinges, and it will fall if it is not properly supported when the mounting bolts are removed. Personal injury or death can result if the guard falls on a person. Support guard with the jack in the tool chart or an equivalent support before removal of the mounting bolts.
If the plate bearing against the guard is not level, the guard can slide off the jack while it is being lowered or raised. This could result in personal injury or death to the serviceman. Be sure the plate is level before removing mounting bolts. See Illustration 3.
Procedure For Removal And Installation Of Bottom Guard Which Uses A 9P9943 Guard Assembly
1. Put tool A under the 9P9989 Guard Assembly. Remove the four nuts and washers from the bolts that fasten the guard to the machine. Lower and remove the guard assembly. See Illustration 3.
Illustration 3. Use of tool A to remove the 9P9989 Guard Assembly.2. Put tools B and C under the 9P9943 Guard Assembly. Tighten the clamps for tool B on the guard. Remove the bolts that fasten the guard to the machine. Remove the guard with the tools. See Illustration 4.3. Use tools B and C to put the 9P9943 Guard Assembly into position. Install the bolts that fasten it to the machine.4. Use tool A to put the 9P9989 Guard Assembly into position. Install the nuts and washers that fasten it to the machine.
Illustration 4. Use of tool B and C to remove the 9P9943 Guard Assembly.Procedure For Removal And Installation Of Bottom Guard Which Uses A 3T2224 Guard Assembly
1. Put tool A under the 9P9989 Guard Assembly as shown in Illustration 3. Remove the four nuts and washers that fasten the guard to the machine. Use tool A to lower and remove the guard assembly.2. Put tool A in position under the 3T2224 Guard Assembly as shown in Illustration 5. Remove the bolts that fasten the guard assembly to the machine. Use tool A to lower and remove the guard assembly.3. Use tool A to put the 3T2224 Guard Assembly into position. Install the bolts that fasten the guard assembly to the machine.4. Use tool A to put the 9P9989 Guard Assembly into position. Install the nuts and washers that fasten it to the machine.
Illustration