TM 10-3930-659-20 10-9. BRAKE VALVES MAINTENANCE. This task covers: a. Removal c Assembly b. Disassembly d. Installation Initial Setup: Equipment Conditions: Equipment Conditions (Con't): •    Parking brake set (see TM 10-3930-659-10). • Right brake valve-to-rear brake hose and fittings removed  (right brake  valve  only)  (see para- •    Low brake pressure switch removed (see para- graph 6-36). graph 10 11). •  Right brake valve-to-hydraulic reservoir hose and •    Left brake valve-to-right brake valve hose and    fittings removed (right brake valve only (see para- fittings   graph 10-13). removed (see paragraph 10-12). •    Right and left brake valves-to-accumulator Materials/Parts: hoses and fittings removed (see paragraph 10-14). •    Brake light switch removed (left brake •  Brake valve seal kit valve only) (see paragraph 6-30). •    Left brake valve-to-front brake hose and fittings  Tools/Test Equipment: removed  (left brake  valve  only)  (see  para-  • General mechanic's tool kit (Item 44, Appendix F) graph 10-10). •    Left brake valve-to-hydraulic reservoir hose and Personnel Required:  Two fittings removed (left brake valve only) (see para- References: graph 10-13).TM 1393659-1 • • TM 10-3930-659-10 10-25