TM 5-2420-224-20-2B A C K H O E / C R A N E H Y D R A U L I C L I N E S A N D F l T T l N G S R E P L A C E M E N T -This task covers:a. Removal b. InstallationI N I T I A L S E T UPTools and Special Equipment:General Safety Instructions:Shop Equipment, SC 4910-95-CL-A74TOOI Kit, SC 5180-90-CL-N26Materials/Parts:Packing (AR)Nut, Lock (AR)Caps and PlugsRagsEquipment Condition:ReferencePage 2-22 or 2-23Page 2-23Appendix C, Item 7Appendix C, Item 32Condition DescriptionBackhoe (SEE) or Crane(HMMH) in Three-PointStanceW A R N I N GHigh pressure hydraulics [oilunder 2450 psi (16,893 kPa)]o p e r a t e t h i s e q u i p m e n t .N e v e rd i s c o n n e c ta n yh y d r a u l i c l i n e o r f i t t i n gw i t h o u tf i r s td r o p p i n gp r e s s u r e t o z e r o . A h i ghp r e s s u r e o i l s t r e a m c a np i e r c e b o d y a n d c a u s esevere injury to personnel.Fuel and oil are slippery andc a n c a u s e f a l l s . T o a v o idinjury, wipe up spilled fuel oroil with rags.Hydraulic PressureRelievedC A U T I O NCap or plug all ports and ends of hoses and tubes to prevent contaminationof hydraulic oil. Failure to do so may result in damage to equipment.NOTE• Procedure is the same for both vehicles.• Tag lines prior to removal to aid in installation.• Discard packing(s) and lock nut.REMOVE backhoe/crane hydraulic LINES and FITTINGS using illustration and legend as a guide.l N S T A L L A T l ON••INSTALL4-598NOTEProcedure is the same for both vehicles.Install new packing(s) and new lock nut.backhoe/crane hydraulic LINES and FlTTINGS using illustration and legend as a guide.R E M O V A L
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