TM 10-3930-659-20 10-13.    BRAKE VALVES-TO-HYDRAULIC RESERVOIR HOSES AND FITTINGS REPLACEMENT. This task covers: a. Removal b. Installation INITIAL SETUP: Equipment Conditions: Materials/Parts: •    Parking brake set (see TM 10-3930-659-10). • Rags (Item 27, Appendix C) •    Frame  locking  bar installed  (see TM 10-3930-  • Eight preformed packings 659-10). •    Hydraulic  reservoir  drained  (see  LO 10-3930- Tools/Test Equipment: 659-12). • General mechanic's tool kit (Item 44, Appendix F) •    Conveyorized fork attachments removed from side of forklift truck (see paragraph 17-13). References: •    Right and left engine upper sideshields opened (see TM 10-3930-659-10). • LO 10-3930-659-12 •    Cab skirts removed (see paragraph 14-6). • TM 10-3930-659-10 NOTE A  suitable  container  should  be  used  to  catch  any  draining  hydraulic  fluid. Ensure that all spills are properly cleaned. a. REMOVAL WARNING Pressure  stored  In  accumulator  Is  approximately  500  psi  (3448  kPa).    Ensure that accumulator pressure Is relieved before removing service brake hoses or components.    Failure  to  follow  this  warning  may  result  in  serious  Injury  or death to personnel. NOTE * It is necessary to hold boot of one brake pedal with hand while opposite brake pedal is pumped.  Movement Inside boot will be felt as opposite brake pedal is pumped. Accumulator pressure Is relieved when movement stops. * Each brake pedal should be pumped a full 75 times even If no movement Is felt after pumping brake pedal several times. 1. Hold boot (3) of left brake pedal (4) with hand and pump right brake pedal (1) 75 times.  Release boot. 10-38