60
1/21
MODEL 200 UC
HYDRAULICS
Tools Required:
Instructions provided by component manufacturer.
3/4” Drag Link
Drive Socket
CONTROL VALVE DETENT ASSEMBLY AND
O-RING REPLACEMENT
1. Lubricate spool, o-rings, and back-up rings with clean oil. Insert spool and center it in the valve body.
2. Place the new o-rings and back-up rings over spool ends and seat them into the valve body. Seat the
seal retainer onto back-up ring making sure not to pinch the o-ring or back-up ring against the valve body.
3. Re-attach the hand lever to the spool. Mount control lever assembly onto the valve body using (2) two
socket head cap screws. Apply Loctite 243 (blue) to the screws.
4. Thread a new detent assembly onto the spool end and hand tighten to 72 in-lbs (8 Nm) with the 3/4” drag
link drive socket blade. No additional lubricant is required.
5. Mount the spring cover and the (2) two socket head cap screws. Apply Loctite 243 (blue) to the screws.
6. Hand tighten all (4) four socket head cap screws with the 3/16” Tee handle hex driver.
7.
Shift valve with hand lever to assure operation. With some eff ort, the hand lever should move between
three positions. The detent will hold the hand lever in the three positions.
GENERAL PROCEDURE:
- Small amount of clean hydraulic oil
- Clean working area, free of debris and shop rags
- 3/16” Tee handle hex driver
- 3/4” drag link drive socket
- Jawed vice
1.
Secure valve in vice or suitable method to fi rmly hold valve.
2. Note the orientation and placement of all components during disassembly.
3. Using the 3/16” Tee handle hex driver, remove (2) two socket head cap screws which hold the spring
cover to the valve body. Set aside for re-use.
4. The detent assembly is now visible. Insert the 3/4” drag link drive socket blade into slot of retaining screw.
Loosen and remove the retaining screw along with the entire detent assembly.
5. With the 3/16” Tee handle hex driver, remove (2) two socket head cap screws that hold the control lever
assembly to the valve body.
6. Detach hand lever from spool. Carefully remove the spool from the valve body. Take care not scratch,
dent, or nick the spool. Note the orientation of handle attachment point on spool. Set aside for re-use.
7. Remove (2) two seal retainers, o-rings, and back-up rings from both ends of the valve.
8. Inspect and replace o-ring and back-up ring if cut, or if leak is suspected.
Disassembly:
Assembly:
Relief
Valve Kit
Back-Up
Ring
Seal
Retainer
Seal
Retainer
Handle
Valve
Spool
Detent
Assembly
Detent
Cap
Valve
Body
Back-Up
Ring
O-ring
O-ring
Содержание 200UC
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