Jack Replacement, Foot End - Stryker 747 Manual De Mantenimiento

JACK REPLACEMENT, FOOT END

English
Tools Required:
• 1/2" Socket with Extension
• 3/8" Drive Ratchet
• Pliers
• 3/8" Drive Torque Wrench (ft-lb)
Procedure:
1 . Remove the litter from the stretcher . See "Litter Top Removal" on
2 . Lift the base hood off of the base frame .
3 . Using a 1/2" socket with extension, remove the two hex washer head screws and washers that connect the pump
pedal link to the foot end pump pedal assembly and pump connecting rod .
4 . Remove the foot end release rod from the release valve on the jack assembly by disconnecting the release pedal
swivel from the pins on the release pedal weldment .
5 . Disconnect the jack pump piston from the pump connecting rod .
6 . Using a 1/2" socket with extension, remove the two hex washer head screws that hold the reservoir clamp .
7 . Remove the jack assembly .
8 . To reinstall the jack, install the bolts on the jack and reservoir clamp but do not tighten them fully .
9 . Reinstall the pump connecting rod and release rod .
10 . Depress the pump pedal fully (to the floor) . This will properly locate the jack onto the base frame .
11 . Tighten the bolts on the jack and reservoir clamp . Torque all bolts to 13 ± 2 ft-lb .
12 . With the assistance of another person, reinstall the litter top onto the jack shafts .
13 . Torque the hex head screws on the support tube weldments to 11 ± 5 ft-lb .
14 . Pump up the litter and apply weight to verify the jacks hold and do not drift .
15 . Verify proper operation of the unit before returning it to service .
Note:
The jack descent rate is set at the factory and adjustment is not recommended .
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Service Information
0747-009-006 REV J
page 1-26 .
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