Section 106d(v) clearly states: "The total height of primary springs and compensating rings should not exceed 295 mm."

Section 119(d) reinforces this by stating: "Once a Joint check has been carried out and the deficiency list drawn out no removal of fitting from the stock at the starting depot should be entertained." The sealing and locking are physical measures to enforce this.

Table 1.11 shows for a 16.25-tonne bogie, the 'A' dimension is 22 ± 2 mm and the 'e' dimension is 375 ± 25 mm.

The introduction states: "...while minor changes in the shell have been made to reduce corrosion and improve the strength of certain members."

Section 117a (Air brake system maintenance) item (vi) specifies: "A set of two master gauges should be kept for this purpose at every Primary Maintenance Depot and each master gauge should be sent one after the other to the base workshops for repairs, testing, repairs and calibration."

Section 112e states: "The date and station code of the depot where a particular schedule is carried out should be stencilled at the appropriate place in the schedule chart immediately when the schedule is completed."

Section 109e(i) states: "Cleaning of GS, guard and passenger compartments of SLR should be done as mentioned under para 109d above wherever applicable." 109d details the internal cleaning of upper class AC and sleeper coaches.

Section 119(a) states: "Security Department shall arrange to escort all coaches booked to shops when booked by coaching specials or in lots of 3 coaches or more..."

Section 117a (Vacuum brake system) item (iv) states: "Thorough checking of train pipes under pressure of 2kg/cm² to detect thin, corroded and punctured pipes. A high pressure pump must be provided..."

Note P4 (Page 9) states: "The variation in all the four bogie corner heights must be less than or equal to 10 mm." This is critical for ensuring the bogie frame is not twisted and load is evenly distributed.

Section 111c(i) states: "All bogies of such ICF coaches shall be given IOH after six months ± 15 days of the date of last POH..."

Section 109d(xi) states: "Spray recommended air freshener in the coach. No employee should be allowed to enter the coach for any purpose/work after complete cleaning."

Section 107b(vi) states: "Temperature of the axle boxes should be measured preferably with the help of the electronic temperature measuring device."

Table 1.1(i)(b) states that for coaches earning >2.5 lakh km/year, POH is due every 12 months. The coach has done the km in 11 months, but the time-based limit (12 months) is the governing factor.

The "Failure Particulars" section of the form asks for "Cause of Failure (Detachment)" and "Defect found (on examination)."

The note on the certificate states: "IF RAKE INTEGRITY IS BROKEN BY MORE THAN TWO VEHICLE UNITS, A FRESH CERTIFICATE IS REQUIRED."

Section 119(g) clarifies: "...the deficiency list prepared jointly at the originating station should again be checked at the workshop... and the difference of the two checking should be taken as theft."

Section 119(e) states: "In case of any additional deficiency being noticed, a list of such additional deficiencies be made out in four copies jointly by all the three staff."

Section 119(c) specifies: "...out of which one copy should be pasted inside the compartment on one of the end wall."

Section 117d mentions these holes are provided "For facilitating inspection of sole bars."

Section 112d(iv) states: "Also the revised maximum payload of NMG coaches is fixed at 9.2 tonnes."

Section 112b clarifies: "In emergency... A & B schedules should be undertaken by the carriage depots where the coaches are available. 'C' schedule should be done at base depot."

Section 111i(2) specifies: "The Divisional Officers, viz. Sr. DME, Sr. DEE & SC must meet every three months to carry out similar analysis and decide upon preventive steps..."

Section 111i(iv) states: "For trains where an escorting C&W staff is provided on the train, he shall carry DRS card... and get them filled up at the secondary maintenance depot..."

Section 110d(ii) lists this as an operational requirement: "Special care to ensure no gap between coach buffers after tightening the coupler."

Section 108a, point 1(iv) under PRIMARY END, states: "All missing passenger amenity fittings must be replaced and the rake must be turned out as 'Zero-Missing-Fitting' rake."

Section 113f(iv) states: "Tower bolts should be fitted on a sound base with proper screws, at an angle of 15° to the horizontal to avoid locking by its self."

Table 1.9, item 8, specifies the warranty for composition brake blocks as "18 months from the month of supply or duty life cycle i.e. time taken in reaching the wear limit of the brake block, whichever is earlier."

Section 111k(v) explains that if trial fittings are on the coach, a "Trial Card" is sent with details of the trial, the nature of observations, and the authority to whom reports must be submitted.

Section 116b(viii) provides this safety instruction: "If the air pressure of brake cylinder does not vent by pulling the manual release valve of distributor valve, open the brake cylinder vent plug to drain the air pressure."

Section 117a (Air brake system maintenance) item (vi) states: "Test BP & FP air pressure measuring gauges with master gauge and replace if found defective."

Section 115b lists items for Schedule 'B'. Item (iii) is "Painting of lavatories from inside," which is not listed in the Schedule 'A' tasks in section 114.

Section 112a(i) specifies: "Schedule A - Monthly (1 month ± 3 days) in rake."

Table 1.9, item 3, shows this specific condition for "BP/FP hose," which is the same as for the Distributor Valve and Brake cylinder: "36 months from delivery or 24 months from fitment, whichever is earlier."

Section 111i(i) concludes with: "After the coaches have been jointly checked, and DRS reports have been made, the coaches should be padlocked/ key locked and the key and report should be sent to the platform Engineer (C&W)."

Section 111a(iv) states: "It should, however, be subjected to necessary examination and repairs including maintenance schedules in the manner as it belonged to the depot."

Section 111f(i) clearly states: "These fire extinguishers should be checked every three months and completely refilled after one year."

Section 109c(vii) states: "After all the washing and cleaning in the toilets mentioned above, the toilets should be thoroughly cleaned with water jets and water should be flushed out." Drying (viii) comes after this.

Section 109 and 109b(vii) both reference "RDSO specification No. M&C/PCN/101/2001" for recommended cleaning solutions.

Table 1.8, Sr. No. 01, column D specifies "Under gear examination and brake system maintenance at pit line" is done at "Both the ends."

Section 107b(ii) mentions the need for proper lighting and states: "Use of fixed lights as indicated in figure 1.5 is preferable."

Section 107a(ii) clearly defines the lower limit: "Trains which are attended on platform or where secondary examination has been dispensed with or enroute should have minimum 90% brake power."

Section 107a(ii) specifies: "The level of the air pressure/vacuum on the train engine and the brake van gauges as well as the percentage of operative cylinders should be recorded on a prescribed certificate..."

Section 106d, Note (ii) concludes with: "Over this, additional compensating rings can be added to a limit not exceeding 12 mm."

Section 106d, Note (ii) states: "According to tare weight of coaches compensating ring shall be provided over lower spring seats as shown in suspension diagrams issued by ICF and RCF for various types of coaches..."

Section 105e mandates: "Lines should be protected by scotch blocks with locking arrangement and key should be kept with Engineer till the time maintenance work is carried out."

Section 105b(vii) explicitly states the blocks are inserted "so as to keep the bolster springs compressed." This prevents the springs from expanding uncontrollably once the weight of the body is removed.

Table 1.1(i) differentiates based on km earned. Coaches earning more than 2.5 lakhs kms per annum require POH every 12 months and an IOH after 6 months.

The introduction states the original design was modified to "all coil bogies with longer suspension hangers and weight transfer through side bearers, thereby enabling speed potential to 105 kmph... and gradually to 140 kmph."