- Wheel Loader:
- 950H (S/N: N1A1-UP; M1G1-UP; J5J1-UP; K5K1-UP)
- 962H (S/N: N4A1-UP; M3G1-UP; J6J1-UP; K6K1-UP)
- Work Tool:
- QUICK COUPLER (S/N: ARJ6959-6970; 7WW2953-2953,3006-3006,3030-3030,3037-3037,3139-3139,3158-3158,3159-3159,3160-3160,3172-3172)
Introduction
The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.
Problem
The 268-9393 Coupler is only compatible with the 950G and 950G Series II wheel loaders. The coupler is not compatible with 950H and 962H wheel loaders. This is due to a change in the third valve operation in the cab from the "G" to the "H" series machines. The coupler that is needed for the 950H is the part number 268-9397 Coupler . The 268-9393 Coupler is not to be installed on 950H and 962H wheel loaders.
Solution
Any existing 950H or 962H wheel loaders with the 268-9393 Coupler already installed need to be converted. The 268-9393 Coupler can be converted to the equivalent of the 268-9397 Coupler by performing the procedure that follows.
Conversion Procedure
ReferenceSpecial Instruction, GEBI0217, "Installation of 274-2411 or 274-2412 Coupler Supply Group"
ReferenceParts Manual, GEBP6628, "Coupler 268-9397"
Required Parts
| Item | Qty | Pt. No. | Description |
| (1) | 1 | 272-6362 | Lines Gp (1) |
| (2) | 2 | 9S-4182 | O-Ring Plug |
| (3) | 2 | 3J-7354 | O-Ring Seal |
| 4 | 1 | 274-2411 | Lines Gp (1) (2) |
| ( 1 ) | These custom products may be ordered by contacting Caterpillar Work Tools 800-752-2858. |
| ( 2 ) | This supply group is required to be installed on the machine in order to work with the converted coupler. Refer to Special Instruction, GEBI0217, "Installation of 274-2411 or 274-2412 Coupler Supply Group". |
Parts To Be Removed from the 268-9393 Coupler
Table 2 contains a list of parts that must be removed from the 268-9393 Coupler as part of the conversion process.
| Item | Qty | Pt. No. | Description |
| (5) | 1 | 6W-8221 | Ball Valve |
| (6) | 1 | 030-6817 | Elbow |
| (7) | 2 | 269-7325 | Hose As |
| (8) | 1 | 004-6683 | Fitting |
| (9) | 2 | 3J-1907 | O-Ring Seal |
| (10) | 2 | 3J-7354 | O-Ring Seal |
| (11) | 4 | 6V-8397 | O-Ring Seal |
| (12) | 1 | 6V-8724 | Elbow |
| (13) | 2 | 6V-9872 | Connector |
| (14) | 1 | 8C-6869 | Connector |
Convert the Coupler
 | |
| Illustration 1 | g01366423 |
(A) 6W-8448 Block (5) 6W-8821 Guard As (6) 030-6817 Elbow (7) 269-7325 Hose As (9) 3J-1907 O-Ring Seal (10) 3J-7354 O-Ring Seal (11) 6V-8397 O-Ring Seal (12) 6V-8724 Elbow (13) 6V-9872 Connector (14) 8C-6869 Connector | |
 | |
| Illustration 2 | g01366427 |
(B) Hoses for third valve functions (1) 272-6362 Lines Gp (2) 9S-4182 O-Ring Plug (3) 3J-7354 O-Ring Seal | |
- Remove the parts from the coupler that are listed in table 2. Refer to illustration 1 for more detail.
- Install the lines group (1) onto the coupler's cylinder at the ports where hoses (7) were removed.
- Install a plug (2) with a seal (3) at the ports on the valve blocks (A). The location of the ports is where the elbow (6) and elbow (12) were removed.
Note: The valve blocks will be utilized for the machine's third valve function.
- This arrangement will require a custom 274-2411 Lines Gp to be installed on the machine. Contact Caterpillar Work Tools 800-752-2858.