TM 10-3930-659-20 5-5. ENGINE OIL LEVEL GAGE TUBE REPLACEMENT. This Task Covers: a. Removal b. Installation Initial Setup: Equipment Conditions: Materials/Parts: • Battery disconnect switch in OFF position (see •  One preformed packing TM 10-3930-659-10). • Left engine upper sideshield opened (see TM 10- References: 3930-659-10). •  TM 10-3930-659-10 Tools/Test Equipment: • General mechanic's tool kit (Item 44, Appendix F) a. REMOVAL 1. Remove engine oil level gage (2) from tube (4). NOTE Note position and measure height of tube to aid during Installation. 2. Loosen jamnut (5) and remove tube (4) from engine block (1). 3. Remove preformed packing (3) and jamnut (5) from tube (4).  Discard preformed packing. b. INSTALLATIONI 1. Install new preformed packing (3) and jamnut (5) on tube (4). 2. Install tube (4) on engine block (1). 3. Tighten jamnut (5) on tube (4). 4. Install engine oil level gage (2) in tube (4). 5-12