MOS-94P Multiple Launch Rocket System (MLRS) Repairer M142 HIMARS Download
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STP 9-94P1-SM-TG e. Disconnect the W338P4 connect from hydraulic pump J2.Remove the ground strap from ground stud. f. Install hardware on pump grounding stud. Secure pump with lifting strap and maintain tension. g. Remove clamp from around pump mounting flange. Guide pump shaft away from clutch until spindled coupling shaft is fully disengaged from clutch. Remove pump and set the hoses as high as possible in relation to pump to minimize fluid loss. 4. Install the replacement hydraulic pump unit. a. Lower pump into engine compartment. Guide pump forward toward clutch until pump splined coupling shaft engages clutch receptacle. b. Install clamp from around pump mounting flange. Tighten pump mounting clamp, and torque clamp nut between 7.9 to 8.5 Nm (69.92 to 75.23 in-lbs). c. Install ground strap and secure to pump ground stud. Connect cable W338P3 to hydraulic pump J1. d. Connect cable W338P4 to hydraulic pump J2.Install fan drive propeller shaft guard. e. Connect hydraulic pump to heat exchanger pressure hose to Heat Exchanger Unit (HEU) port A. f. Connect hydraulic pump to heat exchanger return hose to Heat Exchanger Unit (HEU) port B. g. Install tie down straps securing heat exchanger hoses to transmission hose. Connect hydraulic pump case drain hose to engine compartment bulkhead 109. h. Connect hydraulic pump return hose to engine compartment bulkhead 109.Connect hydraulic pump pressure hose to engine compartment bulkhead 109. i. Locate aft right engine compartment, and secure hoses to hose support bracket. 5. Connect the electrical cables W338 to the hydraulic pump. 6. Perform a hydraulic system status check. 7. Move the M270A1 rocket launcher in azimuth and elevation. 8. Complete maintenance forms. 1 October 2014 3-83