CYLINDER & SEAL GP-STICK 7Y5193 - Caterpillar

4. Remove three bolts (1) and control valve guard (2). 5. Disconnect all air and oil lines (4) from the elevator control valve (3). Put plugs or caps on the lines to keep out dirt. Put identification on all lines.6. Fasten a hoist to the control valve. Remove two bolts from underneath that hold control valve to a bracket. Remove elevator control valve.Install Elevator Control Valve
1. Put elevator control valve (2) in position on bracket (1) and install the two bolts that hold it.2. Remove all plugs and caps from the lines. Connect the lines to their respective positions.3. Install control valve guard with three bolts.4. Start the engine and operate the hydraulic levers to remove the air from the system. Stop the engine and check the oil level in the hydraulic tank.Disassemble Elevator Control Valve
start by: a) remove elevator control valve 1. Remove two bolts (1) and remove relief valve body (2). 2. Remove spring (3) and valve (4). Remove and inspect O-ring seals (5). Make a replacement of the seals if necessary. Remove two bolts (7), then remove bottom section (6) of relief valve. Remove O-ring seal from bottom of section (6). Inspect the seal and make a replacement if necessary. 3. Remove two bolts (17) to make a separation between relief valve bodies (8) and (15). Remove valve (13), remove shims (14) from valve (13). Remove spring (11), sleeve (12) and pilot valve (10). Remove O-ring seal (9) from body. Inspect seal and make a replacement if necessary. 4. Remove four bolts (18) and flow control valve body (19). 5. Remove two bolts and cover (22) from valve body. Remove O-ring seal (23) from cover. Inspect the seal and make a replacement if necessary. Remove spring (21) and valve (20) from valve body. 6. Remove two bolts and cover (28) from valve body. Remove O-ring seal (27) from cover. Inspect the seal and make a replacement if necessary. Remove valve (25) and spring (26) from valve body. Remove and inspect O-ring seals (24). Make replacements if necessary.Assemble Elevator Control Valve
1. Install spring and valve into valve body (2). Put a new O-ring seal on cover (4). Install the cover and two bolts (3). Install new O-ring seals (1) on valve body. 2. Install valve (6) and spring (5) into flow control valve body. Put a new O-ring seal (8) on cover (7). Install cover on valve body with two bolts. 3. Install flow control valve on valve body with four bolts (9). 4. Install pilot valve (12), sleeve (11) and spring (14) into body (10). Put shims (13) into valve (16) and install valve (16) into body (15). Install body (15) on body (10) with two bolts (17). 5. Install bottom section (21) of relief valve with two bolts (22). Install new O-ring seals (20). Install valve (19) and spring (18). 6. Install relief valve body with two bolts.end by: a) install elevator control valve