Model 4700 Maintenance Manual
Section 7. Component Procedures
Mast 15. Route the hoses up into the upper hose guide.
Quad Mast Service Figure 7-111. Hose Reeving Installation - continued
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16. Route the hoses under the hose clamps at the top of the upper hose guide. Tighten the cap screws finger tight. 17. Route the hoses under the hose clamps at the bottom of the upper hose guide. Do not tighten the clamp cap screws.
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18. Tighten the crosshead cover plate cap screw to 30 to 33 ft. lb. (40 to 45 Nm). 19. Align the hoses by twisting the hose ends to travel centered in the crosshead on the natural curve of the hose. The hoses should travel parallel to each other. Hold the hoses while tightening the fittings to keep the hoses from twisting. 20. Loosen the hose clamps at the top of the lower hose guide. Pull down on the hoses with 40 lbs. (18 kg) of force. Tighten the hose clamp cap screws to 7 to 11 ft. lb. (10 to 15 Nm). 21. Loosen the hose clamps on the upper hose guide. Adjust the hoses to the natural hose bend and align evenly spaced in the guide rails. Tighten the hose clamp cap screws to 7 to 11 ft. lb. (10 to 15 Nm).
Upper Hose Guide
18 1 20 3
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Crosshead
22. Raise and lower the mast slowly through several cycles and check for correct hose alignment, clearances and hose tracking in the guides.
20 3
Lower Hose Guide
19 2
MA0258.eps
Note: Bubbled numbers refer to steps in associated procedure.
Publication 1160093, Issued: 20 May 2013
7-89
