TM   10-3930-638-24&P 2-43. SERVICE BRAKE MAINTENANCE (cont) a. Hydraulie Brake Valve (cont). (1)   Brake   Master   Cylinder   (cont). This   task   covers: a.   Leak   Inspection b.   Cleaning c.   Inspection INITIAL  SETUP TOOLS No.  1  Common  Organ-  NSN  4910-00-754-0654 izational   Mainten- ance   Tool   Kit Hard   Wooden   Blocks   (2), 6  by  6  by  18  inches MATERIALS/PARTS Cleaning    solvent P-D-680 Clean   cloths Brake   fluid,   silicone (MIL-B-46176) Grease  (MIL-G-10924) d.  Removal e.     Installation/Replacement EQUIPMENT   CONDITION Paragraph Condition   Description Engine   off. Vehicle   parked   on   level   sur- face,   wheels   blocked, parking   brake   applied. 2-31e(2) Stop   light   switch   removed. 2-43b Brake   hoses,   lines   and fittings   disconnected   from hydraulic   brake   valve. 2 - 5 3i Chassis   guard   removed. STEP LOCATION ITEM ACTION REMARKS LEAK  INSPECTION Change 3   2-295