Cembre MRFT DBS-SRA Instrucciones Para El Uso página 4

1.3) assembling the drilling machine holder
Lay the drilling machine down on one side and assemble the locking holder (E) on the drilling machine frontal plate (PF); fix the holder
using the 4 M6x25 screws (F) provided and a 5-mm Allen wrench, as shown in Figure 4.
2. positioning Jig aRRangEMEnt
2.1) assembling the bars on the front plate
To install the bars (C) (fitted with the base locking device) on the front plate (A), simply insert the 4 M6x25 screws (D) and the washers
into the bar holes (C); tighten them using the 5-mm Allen wrench.
The installation of bars on the front plate depends on the position in which the axle counter has to be installed:
- axle counter installed on the sleeper:
If this is the case, install the two bars (C) on the front plate (A), externally (Figure 5).
- axle counter installed between two sleepers:
If this is the case, install the two bars (C) on the front plate (A), internally (Figure 6).
2.2) Mounting the sR.../3 template set
SR.../3 templates allow operators to automatically position the rail positioning jig and drilling machine at the required drilling height.
- Select the template set (3 pieces included) according to the rail being worked on (S54, UIC60 etc.) and the required drilling height
(please refer to the table);
- Install the 3 templates (M) on the positioning jig frontal plate (A) and fix them using the screws provided (Figure 7); pins (X) will provide
for exact clamp positioning.
- Loosen the two hand wheels (Z) and adjust the height of the locking devices according to the drilling height, referring to the graduated
scale available on the bars (C); this operation allows exact coupling of the jig and rail base.
Example: working on UIC 60 rail using SRT UIC60-68-3 template kit, adjust the bars on notch 68 (required drilling height).
3. Jig positioning on RaiL
To fix the jig onto the rail, do as follows:
- Define exact drilling position (see Paragraph 2.1).
NOTE: To drill on the sleeper, may require temporarily removal of the fastener (Vossloh, Pandrol, etc.) from the sleeper, so as to prevent
it from interfering with drill positioning operations.
- Fully lift the blocks (12) of the two locking devices to manually remove the bracket (04)/screw (05) assembly in the 'fully open' position.
Bring the two locking devices under the rail sleeper, slightly tipping them down (Figure 8A), then bring the positioning jig into a horizontal
position.
- Manually bring the bracket/screw assembly into the fully closed position, so that the bracket (04) lies against the rail base (Fig. 8B);
if unable to achieve this position, adjust the screw (05).
- Move the block fully downwards (12) and tighten the screw (05) using a '19' wrench to actually block the positioning jig on the rail (Figure
8C).
NOTE: To correctly position the block (12) in the working position (fully downwards), the screw head (05) must be aligned with the device
body.
To remove the positioning jig from the rail:
- To release the block (12), unlock screw (05) without further unscrewing it.
- Fully lift the block (12) and bring the bracket/screw assembly in the 'fully open' position.
- Remove the positioning jig from the rail base.
4. DRiLLing MaCHinE CLaMping on tHE positioning Jig
1- Position the drilling machine to the positioning jig, inserting the holder (E) pins (X) into the positioning plate parallel with the reference
notch defining the hole pitch (145, 148 or 270); always check that the red notch on the holder is aligned with the red notch on the posi-
tioning jig (required pitch) (Figure 9A).
Example: to make three holes with a pitch equal to 148 mm (required pitch for Alcatel wheel-sensor installation), position the drilling ma-
chine into the seat with the notches bearing sign 148.
2- Insert the two locking pins (B) into the positioning jig seats to fix the drilling machine in the required position.
3- Using a 19-mm wrench, rotate the pins (B) to securely fix the drilling machine (it is highly recommended to use the spark-plug wrench
provided with the drilling machine for increased convenience).
5. DRiLLing
(Ref. to Fig. 10)
- Connect the SR5000 cooling system and start up the drilling machine.
- Start drilling according to the procedures set out in the drilling machine operation manual.
- Gradually push the advance lever (W) towards the right.
NOTE: The spindle stroke is limited by the safety lock (G) installed on the spindle advance lever; if unable to complete drilling once the
limit has been reached, press the pawl (39) and bring the lever back to the initial position to continue drilling.
- Once the first hole has been made, bring the spindle back to the initial position (fully backwards).
- Remove the pins (B), place the drilling machine into the adjacent seats, blocking it (see § 4) and continue drilling.
(Ref. to Fig. 4)
(Ref. to Figs 5 and 6)
(Ref. to Fig. 7)
(Ref. to Fig. 8)
(Ref. to Fig. 9)
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