Ryobi RY3716 Operation Manual - Page 32

MAINTENANCE TOP PLATE FILING ANGLE See Figure 52. n CORRECT 30° - file holders are marked with guide marks to align file properly to produce correct top plate angle. SIDE PLATE ANGLE See Figure 53. n CORRECT 80° - Produced automatically if you use the correct diameter file in the file holder. n HOOK - "Grabs" and dulls quickly; increases the potential of KICKBACK. Results from using a file with a diameter too small or a file held too low. n BACKWARD SLOPE - Needs too much feed pressure; causes excessive wear to the bar and chain. Results from using a file with a diameter too large or file held too high. MAINTAINING DEPTH GAUGE CLEARANCE See Figures 54 - 56. n Maintain the depth gauge at a clearance of .025 in. Use a depth gauge tool for checking the depth gauge clearances. n Every time the chain is filed, check the depth gauge clearance. ■n Use a flat file and a depth gauge tool to lower all gauges uniformly. Use a .025 in. depth gauge tool. After lowering each depth gauge, restore original shape by rounding the front. Be careful not to damage adjoining drive links with the edge of the file. ■n Depth gauges must be adjusted with the flat file in the same direction the adjoining cutter was filed with the round file. Use care not to contact cutter face with flat file when adjusting depth gauges. MAINTAINING THE GUIDE BAR See Figure 57. TOP PLATE FILING ANGLE 30° CORRECT LESS THAN 30° MORE THAN 30° INCORRECT SIDE PLATE FILING ANGLE 80° Fig. 52 HOOK CORRECT BACKWARD SLOPE INCORRECT DEPTH GAUGE CLEARANCE Fig. 53 DEPTH GAUGE TOOL .025 in. Fig. 54 CAUTION: Make sure the chain has stopped before you do any work on the saw. Page 32 - English FLAT FILE Fig. 55