BOOM AR 2226960 - Caterpillar

Start By:
Remove the hydraulic cylinder. Refer to Disassembly and Assembly, "Hydraulic Cylinder - Remove and Install".
Illustration 1 g01016436
Use the machine to position the grapple with shell (1) flat on the ground. Without the hydraulic cylinder, the tip of shell (2) will rest on the ground. This position will help stabilize the shells during the removal procedure.
Illustration 2 g01016112
(3) Mounting location for hydraulic cylinder
Illustration 3 g01017494
The above Illustration is exploded only for the purpose of clarity.Note: Do not remove pin (4) at this time.
Install pin (8) for lifting purposes. Install pin (8) in mounting locations (3). Install plate (7), washer (6), and bolt (5). Use a suitable lifting device and pin (8) to support shell (9) during the disassembly procedure. Refer to Table 2 for the correct weight of the shell.
Table 2
Weights for the shell    
CZC
Demolition Shell
LH    
171 kg (377 lb)    
CZC
Demolition Shell
RH    
162 kg (357 lb)    
CZC
Recycling Shell
LH    
171 kg (377 lb)    
CZC
Recycling Shell
RH    
156 kg (344 lb)    
CZD
Demolition Shell
LH    
271 kg (597 lb)    
CZD
Demolition Shell
RH    
251 kg (553 lb)    
CZD
Recycling Shell
LH    
288 kg (635 lb)    
CZD
Recycling Shell
RH    
264 kg (582 lb)    
Illustration 4 g01017609
The above Illustration is exploded only for the purpose of clarity.Pin (8) was installed as a lifting location in order to remove shell (9) .Note: If necessary, relieve the tension on pin (4) by shifting the weight of shell (9) .
Remove bolt (11), washer (12), and plate (13) from pin (4) .
Use Tooling (C) to remove pin (4) from grapple housing (10) and shell (9) .
Repeat Step 3 and Step 4 for the pin on the opposite side of shell (9) .
Remove shell (9) from grapple housing (10) and position shell (9) on suitable cribbing. Disconnect the suitable lifting device from pin (8). Remove bolt (5), washer (6), plate (7), and pin (8) .
Illustration 5 g01015961
Note: If necessary, use the machine to adjust the weight of grapple housing (10) in order to reduce tension on pin (18) .
Remove bolt (15), washer (16), and plate (17). Use Tooling (C) to remove pin (18) .
Repeat Step 7 for the pin on the other side of shell (1) .Note: Push bars (14) will slide out of grapple housing (10) when the grapple housing is removed from shell (1) .
Use the machine to carefully remove grapple housing (10) from shell (1) .
Illustration 6 g01018258
Remove bolt (20), washer (21), and plate (22) from pin (23). Remove pin (23) from push bar (14) .
Remove push bar (14) from the mounting location on shell (1). After you remove one of two push bars (14), remove cover (19) .
Repeat Step 10 and Step 11 for the push bar on the other side of shell (1) .
Illustration 7 g01018385
Inspect bushings (25) in push bars (14). If necessary, remove lip seals (24) and use Tooling (B) and a suitable press to remove the bushings from both push bars (14) .
Illustration 8 g01018656
Use Tooling (A) and Tooling (B) to remove lip seals (27) and sleeve bearings