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7
SERVICE DATA
SKILL AND TRAINING REQUIRED FOR SERVICING
This Service Manual is designed for technicians who have the necessary mechanical and electrical
knowledge and skills to reliably test and repair the RG5500 Spin/Relief Grinder. For those without this
background, service can be arranged through your local dealer.
This section presumes that you are already familiar with the normal operation of the grinder. If not, you should
read the operators manual, or do the servicing in conjunction with someone who is familiar with its operation.
Persons without the necessary knowledge and skills should not remove any panels, shields or attempt any
internal troubleshooting, adjustments, or parts replacement.
If you have questions not answered in this manual, please contact your dealer.
Throughout this manual we refer to torque
requirements as "firmly tighten" or the like. For more
specific torque values, refer to the information
below.
Bolts Going Into a Nut, or Into a Thread Hole in
Steel.
Refer to the table at the right.
Bolts Going Into a Thread Hole In Aluminum
Use the Grade 2 values in the table at the right.
Socket-Head Screws Going Into a Nut or Steel
Use the Grade 8 values in the table at the right.
Machine Screws
No. 6 screws: 11 in.- lbs (0.125kg - m)
No. 8 screws: 20 in. - lbs (0.23 kg - m)
No. 10 screws: 32 in. - lbs (0.37 kg - m)
TORQUE REQUIREMENTS
GRADE 2 GRADE 5 GRADE 8
SMOOTH 3 MARKS 6 MARKS
HEAD on HEAD on HEAD
1/4 In. 6 ft-lbs 9 ft-lbs 13 ft-lbs
thread (0.8 kg-m) (1.25 kg-m) (1.8 kg-m)
5/16 In. 11 ft-lbs 18 ft-lbs 28 ft-lbs
thread (1.5 kg-m) (2.5 kg-m) (3.9 kg-m)
3/8 In. 19 ft-lbs 31 ft-lbs 46 ft-lbs
thread (2.6 kg-m) (4.3 kg-m) (6.4 kg-m)
7/16 In. 30 ft-lbs 50 ft-lbs 75 ft-lbs
thread (4.1 kg-m) (6.9 kg-m) (10.4 kg-m)
1/2 In. 45 ft-lbs 75 ft-lbs 115 ft-lbs
thread (6.2 kg-m) (10.4 kg-m) (15.9 kg-m)