Manufacturer’s Recommendation for Setting up a Theodolite1) Ensure that :-

• the tripod head is approximately level

• the tripod feet are firmly fixed in the ground

This should be done BEFORE removing the theodolite from its box.

2) Place the theodolite on top of the tripod, and tighten the centring screw to clamp the theodolite centrally on the tripod head.

3) Use the optical plummet to focus onto the survey station (e.g. nail in top of peg)

• Turn the optical plummet eyepiece to focus the reticle (i.e. the blackcircular mark)

• push (or pull) the optical plummet focussing ring to focus on the survey station

OpticalPlummet Rotate tofocusreticle

Pull in / outto focus on the ground (survey station)

Manufacturer’s Recommendation for Setting up a Theodolite1) Ensure that :-

• the tripod head is approximately level

• the tripod feet are firmly fixed in the ground

This should be done BEFORE removing the theodolite from its box.

2) Place the theodolite on top of the tripod, and tighten the centring screw to clamp the theodolite centrally on the tripod head.

3) Use the optical plummet to focus onto the survey station (e.g. nail in top of peg)

• Turn the optical plummet eyepiece to focus the reticle (i.e. the blackcircular mark)

• push (or pull) the optical plummet focussing ring to focus on the survey station

4) By rotating the levelling foot SCREWS, using all three in a random manner ifnecessary, centre the reticle (black circle) in the optical plummet onto the survey station.

5) Carry out an approximate levelling. Using the pond bubble and by adjusting thelength of TWO tripod LEGS, bring the pond bubble into the centre of thepond bubble tube.

Manufacturer’s Recommendation for Setting up a Theodolite1) Ensure that :-

• the tripod head is approximately level

• the tripod feet are firmly fixed in the ground

This should be done BEFORE removing the theodolite from its box.

2) Place the theodolite on top of the tripod, and tighten the centring screw to clamp the theodolite centrally on the tripod head.

3) Use the optical plummet to focus onto the survey station (e.g. nail in top of peg)

• Turn the optical plummet eyepiece to focus the reticle (i.e. the blackcircular mark)

• push (or pull) the optical plummet focussing ring to focus on the survey station

4) By rotating the levelling foot SCREWS, using all three in a random manner ifnecessary, centre the reticle (black circle) in the optical plummet onto the survey station.

5) Carry out an approximate levelling. Using the pond bubble and by adjusting thelength of TWO tripod LEGS, bring the pond bubble into the centre of thepond bubble tube.

The theodolite is ROUGHLY LEVELLED AND CENTRED over the station.

Manufacturer’s Recommendation for Setting up a Theodolite6) Fine level the theodolite using the PLATE level bubble tube and foot SCREWS

• Position a) align the plate level bubble tube with two foot screws.

Centre the bubble by rotating the two foot screws in oppositedirections. The bubble follows the LEFT thumb.

(continued)

Position a

Bubble follows LEFT THUMB

Plate Level Bubble Tube

Foot Screws

Required to move the bubble to the right

Bubble follows direction of left thumb

Both thumbs move in (or out)

Position a

Bubble follows LEFT THUMB

Position a

Manufacturer’s Recommendation for Setting up a Theodolite6) Fine level the theodolite using the PLATE level bubble tube and foot SCREWS

• Position a) align the plate level bubble tube with two foot screws.

Centre the bubble by rotating the two foot screws in oppositedirections. The bubble follows the LEFT thumb.

• Position b) align the plate level bubble tube with the third foot screw. i.e. 900 from position a)

Centre the bubble by rotating the the third foot screw (only)The bubble follows the LEFT thumb.

Position b900 to position a

Bubble still follows LEFT THUMB

Using the thirdfootscrew only

Select “Setting up a theodolite --- 3”