www.stryker.com 6390-009-002 REV D 63
Service
Non-locking manual valve removal and replacement (Continued)
• 1/16" hex wrench
Procedure
1. Pull the trolley assembly out of the patient compartment until it locks into the loading position.
Note: This makes working on the product easier, but is not required.
2. Lower the lifting arms down.
3. Remove the trolley covers. See Cover removal and replacement on page 40.
4. Remove the manual release button assembly. See Manual release button assembly removal and replacement on
page 42.
5. Using a 7/16" deep well socket and 3/8" drive ratchet, remove the Nylock Hex nut (A) that secures the non-locking
manual valve (B) to the manual release link (C) (Figure 31 on page 63).
Note: Place a 1/16" hex wrench through the slot on the non-locking manual valve (B) to keep it from turning (Figure
31 on page 63).
6. Using a 7/8" deep well socket and 3/8" drive ratchet, remove the non-locking manual valve (B) (Figure 31 on page
63). Discard the valve.
Note: Hydraulic fluid will leak from the cylinder and hoses. Lay down towels to catch fluid.
7. Reverse steps to reinstall.
8. Check the fluid level before returning the product to service. See Filling the reservoir on page 70.
9. Verify proper operation of the product before returning it to service.
Figure 31: Non-locking manual valve
Hose removal and replacement
Tools Required
• 11/16" combination wrench
• (2) 9/16" combination wrench
• T25 Torx driver
Procedure
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