6-2 HVR-15006-1-4. Tightening Torque and Handling of Washers1. Screwdrivers and Tightening Torque of ScrewsMany M1.4 and M2 screws are used in the HVR-1500.Be sure to use the authorized tools to loosen and tighten them.In addition, use a torque screwdriver to tighten the screws with the specified tightening torque.Torque screwdriver bit (for M 1.4) : J-6325-110-ATorque screwdriver bit (for M 2) : J-6325-380-AHexagon bit (for torque screwdriver) : J-6326-120-ATorque screwdriver (for 3 kgf.cm) : J-6325-400-ATightening torqueFor M1.4 screw : 0.1 N.m (1.0 kgf.cm)For M2 screw : 0.2 N.m (2.0 kgf.cm)nThe HVR-1500 uses many small screws that easily fall inside the machine when removing and re-assemblingparts. To avoid this risk, magnetize the screwdriver bit slightly enough to prevent small screws from falling intothe machine. However, when installing the drum assembly, never use a magnetized screwdriver.2. Stop Washer and E ringDo not use old stop washers and E rings that have been removed.Always use new stop washers and E ring to attach the parts.Stop washer (1.5) : 3-669-465-01Stop washer (2.3) : 3-669-596-01E ring (2.3) : 7-624-105-04Cotter polyethylene washer : 3-321-813-01Polyslider washer (Ø2.0) : 3-701-437-01How to Remove the Stop Washers and E ringUse the following fixtures to remove stop washers and E ring.Washer extracting fixture (A) :J-6082-234-Am. Be careful not to drop the stop washers and E ring inside the HVR-1500.. Be careful not to let tools touch other parts, especially the drum.How to Attach the Stop WashersUse the following tools to attach stop washers :Washer mounting fixture Ø1.5 : J-6082-231-AWasher mounting fixture Ø1.2 : J-6082-232-AWasher mounting fixture Ø0.8 : J-6082-233-A(a) Insert a stop washer to the tip of the washermounting fixture.(b) Set the thin tip of the mounting fixtureperpendicularly to the top of the shaft towhich the stop washer is to be installed.(c) Press the thick portion of the fixture down-ward to install the stop washer onto the shaft.Washer mounting fictureStop washerStop washer
