Preparation - CONCORD Precision Shank Drill Operator's Manual

2. Preparation

2. Preparation
Before using the implement a careful inspection must
become routine.
Check to be sure that all hardware is securely tightened
and moving parts properly lubricated.
Tighten all loose nuts and bolts and replace any bent or
broken parts.
When tightening bolts, they must be torques to the proper
number of foot-pounds as indicated in the table unless
specified. It is important that all bolts be kept tight.
On new machines, all nuts and bolts must be rechecked
after a few hours of operation.
When replacing a bolt, use only a bolt of the same grade
or higher. Except in shear bolt applications where you
must use the same grade bolt.
Precision Shank Drill
Operators Manual - 74356-02
SAE
Grade 5
Bolts with no marking are grade 2.
Grade 5 bolts furnished with the machine are identified
by three radial lines on the head.
Grad 8 bolts furnished with the machine are identified by
six radial lines on the head.
All U-bolts are grade 5.
22
SAE
Grade 8