Hydraulic A Valve Or B Valve Replacement - Stryker Power-PRO IT Manuel D'utilisation

HYDRAULIC A VALVE OR B VALVE REPLACEMENT

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Tools Required:
• T25 Torx Driver
• 3/4" Combination Wrench
• 7/8" Combination Wrench
• (2) Saw Horse
Procedure:
1. Raise the cot to the full upright position.
2. Using two saw horses, support the litter and activate the manual release handle to relieve any hydraulic oil
pressure.
3. Using a T25 Torx driver, remove the seat pan from the litter to access the hydraulic assembly.
4. Disconnect all connections to the main cable assembly.
5. Using a 3/4" combination wrench, remove the nut that secures the solenoid to the A valve (A) or B valve (B)
(Figure 55). Save the nut for reinstallation.
6. Remove the solenoid from the valve. Save the solenoid for reinstallation.
7. Using a 7/8" combination wrench, remove the A valve or B valve from the hydraulic subassembly.
Note: Hydraulic oil will leak from the valve and manifold. Lay down towels to catch the oil.
8. Reverse steps to reinstall.
9. Check functionality by running the cot up and down several times. If necessary, add hydraulic oil. See "Filling the
Hydraulics Assembly Reservoir" on
10. Verify proper operation of the unit before returning it to service.
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1-86
Service Information
page 1-81.
B
A
Figure 55
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