Usage:
311B (8GR, 8HR, 2LS, 2MS),
312B (9GR, 9HR, 2NS, 3ES),
312B L (8JR, 3FS, 9FS, 2KW),
320B (3MR, 5BR, 1CS, 1XS),
320B L (4MR, 6CR, 7JR),
320B N (4NR, 2AS),
322B (3NR, 8MR),
322B L (5CR, 8NR, 1YS, 2ES),
322B LN (1ZS),
325B (8GM, 8PR),
325B L (6DN, 7EN, 2JR, 8RR),
325B LN (8FN),
330B (9HN, 8SR),
330B L (2RR, 3YR, 6DR, 8TR, 1JS),
330B LN (5LR) Excavators
- SUPPLEMENT: JUNE 14, 1999
Service Magazine SEPD0413, Article 2, Page 2, April 20, 1998; "Optional Valve Spool Kits Are Available For The Pilot Valve Group To Modify The Response Of Implement Controls".
Information in the above Service Matgazine article is changed. See Service Magazine SEPD0476, Article 8, Page 7 titled "Optional Valve Spool Kits Are Now Available To Modify Implement Control Responses."
--------------- END SUPPLEMENT ---------------
- SUPPLEMENT: DECEMBER 28, 1998
Service Magazine SEPD0413, Article 2, Page 2, April 20, 1998; "Optional Valve Spool Kits Are Available For The Pilot Valve Group To Modify The Response Of Implement Controls".
Disregard this article and refer to Service Magazine SEPD0450, Article 6, Page 5 with the same title. The article in this issue has additional machine adaptability.
--------------- END SUPPLEMENT ---------------
Two new optional valve spool kits are available in order to give quicker implement response at the beginning of lever operation. The kits can be used to modify the listed machines.
The 134-7059 Spool Service Kit (for ports 2 and 4) and the 134-7060 Spool Service Kit (for ports 1 and 3) are used to complete this modification. Two 134-7059 Service Kits and two 134-7060 Service Kits are required for each pilot control valve that is modified. The new spool service kits are adaptable to all machines that are listed above. The current parts list for the 131-5914 Pilot Valve Group will continue to be installed in production machines.
Please refer to the respective Disassembly and Assembly Manual for each machine for more information on valve spool replacement.
Use the illustrations and charts to identify the different parts of each kit. Common parts that are used will be identified by the same reference item. The valve spool kits are only available as a unit (the individual parts of the kits are not serviced).
Illustration 1.
123-2152 Pilot Valve Group (part of 131-5914 Pilot Valve Group showing locations of valve spool (A). See view A-A in Illustration 2 for port locations.
Illustration 2.
View A-A shows the spool port locations on the pilot valve group.
Illustration 3.
134-7059 Spool Service Kit. Refer to Chart 1 for parts identification.
Illustration 4.
134-7060 Spool Service Kit. Refer to Chart 2 for parts identification.
