TM 10-3930-659-20 Table 4-1.  Mechanical Troubleshooting (Con't). MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 24.  BRAKE PRESSURE WARNING LIGHT REMAINS LIT. Step 1. Inspect complete brake system for leakage. Tighten all loose connections. Replace damaged brake hoses or line (see paragraph 10-10, 10-11, 10-12, 10-13, 10-14, 10-15, or 10-16). Step 2. Check low brake pressure switch for continuity (see paragraph 2-27). Replace damaged low brake pressure switch (see paragraph 6-36). Step 3. Test fork/brake hydraulic pump standby pressure (see paragraph 17-3). Adjust fork/brake hydraulic pump (see paragraph 17-3). Step 4. Test fork/brake hydraulic pump flow (see paragraph 17-2). Replace damaged fork/brake hydraulic pump (see paragraph 17-5). 25.  PARKING BRAKE WILL NOT HOLD FORKLIFT TRUCK. Step 1. Inspect parking brake cable for proper adjustment (see paragraph 10-2) or damage. Adjust parking brake (see paragraph 10-2). Replace damaged parking brake cable (see paragraph 10-4). Step 2. Inspect brakedrum and brakeshoes for wear and damage. Remove parking brake assembly and replace worn or damaged parts (see paragraph 10-1). 26.  PARKING BRAKE BRAKEDRUM OVERHEATS. Step 1. Inspect parking brake cable for proper adjustment (see paragraph 10-2) or damage. Adjust parking brake (see paragraph 10-2). Replace damaged parking brake cable (see paragraph 10-4). Step 2. Inspect brakedrum and brakeshoes for wear and damage. Remove parking brake assembly and replace worn or damaged parts (see paragraph 10-1). 4-19