Clause 901b under "Re-fittment of Draw Gear" repeatedly states: "Do not re-use split pins" and "Do not re-use cotters." Clause 902b(v) also specifies: "Use always new cotters."

Clause 901b under "Draw Bar" states: "Load test draw bar (Stc.60.61) at 39.5 t and those of IS 5517 Gr. 35Mn6Mo3 at 60t."

Table 9.3 shows that for slot width of 38 mm, the wear limit is 2 mm with suggested no-go gauge of 40 mm flat.

Table 9.3 specifies that for the 155 mm draft key slot, the wear limit is 9 mm with suggested no-go gauge of 164 mm snap.

Clause 901b under "Re-fittment of Draw Gear" states: "The free height of rubber springs & parting plates should be 208 mm."

Clause 903b(i) states: "Destruction tube should be examined and coaches with collapsed destruction tube should be withdrawn from service at the first opportunity for sick line attention."

Clause 903a(iii) specifies: "Ensure that wear at any section on draw hook should not exceed 10mm."

Clause 903a(iii) states: "Ensure that wear on screw coupling shackle pins, trunion pins shackle/link holes and draw hook holes should not exceed 3mm."

Clause 902b(viii) states: "The projection of buffer from head should be within 600mm to 635mm."

Clause 901b under "Re-fittment of Draw Gear" and Clause 902b(v) both specify opening split pins to 90 degrees.

Table 9.11 shows that for M39 threads, the wear limit is 0.5 mm with thread profile gauge.

Table 9.11 specifies that for buffer spindle body of 40 mm dia, the wear limit is 5 mm.

Clause 902b(iv) states: "rivet cast steel face plate... with 6 Nos. of 16 mm dia flat CSK rivets on buffer plunger from face plate side."

Table 9.10 shows that for buffer plunger tube wall thickness of 9 mm, the wear limit is 4 mm.

Table 9.9 specifies that for buffer casing body wall thickness of 11.5 mm, the wear limit is 5.5 mm in wall thickness.

Clause 902b(iv) mentions that elongated holes can be filled with weld metal and re-drilled to 26 mm dia.

Clause 902b(v) states: "Tighten the nut as to achieve a length of buffer of 635 ± 2 mm."

Clause 902b(v) specifies that the pre-compression of rubber pack with parting plate will be 439 ± 2 mm.

Clause 902b(v) states: "Measure the free height of a set of rubber buffer pad pack... and add parting plates, as required, to achieve a free height of 484 ± 2 mm."

Clause 902b(iv) states that pads should be checked for permanent set to a length below 424 mm.

Clause 902b(iv) under "Rubber buffer pads" states: "Rubber buffer pads should invariably be changed as a set at every alternate POH."

Clause 902a(i) mentions that buffers conform to specification No. IRS-M 10.

Clause 902a(i) states: "Presently enhanced capacity (1030 kg.m) buffer conforming to specification No. IRS-M 10 are fitted in all BG mainline coaches."

Clause 901b under "Re-fittment of Draw Gear on coach" specifies lubricating with graphite grease or used Roller Bearing grease.

Clause 901b states that pads should be checked for having set to a length below 186 mm and replaced if found defective.

Clause 901b under "Rubber draft pads" states: "The rubber pads should invariably be changed as a set every alternate POH."

Clause 901b specifies that the projection of the shoulder on the draw hook from the head stock should be within 92 mm - 120 mm.

Clause 901b states that the castle nuts should be tightened so as to achieve a pre-compression of 196 mm length of pack.

Clause 901b under "Re-fittment of Draw Gear on coach" specifies tightening the castle nuts with 9.15 kg-m torque.

Table 9.2 specifies that the wear limit for hook opening of 48 mm is 5 mm, with suggested go/no-go plug of 46 mm go and 53 mm no-go.

Table 9.2 shows that for the 62 mm dia pin hole, the wear limit is 3 mm and the suggested no-go gauge is 65 mm flat.

Table 9.2 in the document specifies that the wear limit for the root of hook near point of contact with bent link is 13 mm.

Clause 901b under "Draw Hook" section mentions: "Use dye-penetrant test for checking surface cracks in case of doubts."

Clause 901a(ii) states that reclamation of these components (except draft yoke) by hot working/welding is prohibited due to poor weldability and inadequate infrastructure for heat treatment.

Clause 901b clearly states that the periodicity for draw gear inspection and maintenance is "Every POH" (Periodical Overhaul).

Clause 901a(ii) specifies that when the prescribed load is achieved, it should be held for 2 minutes before gradually releasing the load and checking for permanent set.

Clause 901a(ii) states that the latest specified material for screw coupling and draw gear is 35Mn6Mo3 to IS 5517-1993.

Clause 901a(ii) specifies that draw gear components, except draft yoke, are specially heat treated and should not be heated above 550°C.

Clause 901a(i) states that the upgraded material has a breaking load of 130 tonnes for both draw gear and screw coupling components.

According to clause 901a(i), the material was upgraded to IS:5517-93 Grade 35Mn6M03 to enhance the proof load to 75 tonnes (both draw gear and screw coupling).