Vinten Vision 8 User manual

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Vision 8
(Black)

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Vision 8
(Black)
PAN AND TILT HEAD
3841
MAINTENANCE MANUAL
AND
ILLUSTRATED PARTS LIST
PUBLICATION PART No. 3841-9
ISSUE 1
Copyright © Vinten Broadcast Limited 2004
All rights reserved throughout the world. No part of this document may be stored in a retrieval system,
transmitted, copied or reproduced in any way including, but not limited to, photocopy, photograph, magnetic or
other record without the prior agreement and permission in writing of Vinten Broadcast Limited.
Vinten, Vision and Quickfit are registered trademarks of Vinten Broadcast Limited.

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Foreword
This manual provides full and detailed maintenance and spare parts information for the Vinten®Vision® 8
(Black) pan and tilt head.
It is recommended that this manual is read carefully and the illustrations studied prior to operating or servicing
the pan and tilt head. Attention to the details contained herein will ensure that the pan and tilt head will
operate efficiently with the minimum of attention over a long service life. Particular attention must be paid to
cleaning, especially after use in adverse conditions.
To order spare parts or to obtain further information, application should be made to Vinten Broadcast Limited
or to your local distributor.
WARNING!: Read the Safety Section on page 5 before using this pan and tilt head or
attempting any adjustment or repair.
NOTE: Information contained in this document is subject to change.
Vinten Broadcast Ltd reserves the right, without notice, to make changes in equipment
design or performance as progress in engineering, manufacturing or technology may
warrant.

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Notes to readers
This is the on-line version of ‘Vision 8 (Black) Pan and Tilt Head Maintenance Manual’ (3841-9). Readers
should be aware that the pagination differs between on-line and printed versions.
Navigation
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the blue call-outs on an exploded drawing, you will be taken to the appropriate line in the relevant parts list.
Clicking here will take you to the Contents Page.
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Contents

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Safety - Read This First!
Warning symbols in this maintenance manual
Where there is a risk of personal injury, injury to others, or damage to the pan and tilt head
or associated equipment, comments appear, highlighted by the word WARNING! and
supported by the warning triangle symbol.
Critical data
Mass
Mass (complete with pan bar and bowl clamp) 3.0 kg (6.6 lb)
Load
Typical payload 10.5 kg (23 lb)

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Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Notes to readers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Safety - Read This First! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Technical Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Design Improvements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Section 1 - Introduction and Description
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Section 2 - Operation
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Installing the head on a tripod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Mounting the camera. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Mounting the camera (optional Quickfit adaptor) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Balancing the head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Pan and tilt brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Pan and tilt drag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Section 3 - Tools and Materials
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Special tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Consumable materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Section 4 - Servicing
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Routine checks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Section 5 - Repair
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Section 6 - Illustrated Parts List
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Ordering spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Main assembly part numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Associated Publication
Vision 8 (Black) Pan and Tilt Head - Operators Guide
Publication Part No 3841-8

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Illustrations
Page
Fig 1.1 Vision 8 Pan and Tilt Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Fig 2.1 Optional Quickfit Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Fig 2.2 Balance Graph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Fig 4.1 Battery replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Fig 4.2 Brake knob adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Fig 4.3 Drag control knob adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Fig 6.1 Vision 8 (Black) Pan and Tilt Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Fig 6.2 Vision 8 (Black) Pan and Tilt Head - Main Unit Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Fig 6.3 Vision 8 (Black) Pan and Tilt Head - Pan Unit Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Fig 6.4 Vision 8 (Black) Pan and Tilt Head - Tilt Drag Unit Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Fig 6.5 Vision 8 (Black) Pan and Tilt Head - Tilt Brake Unit Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Fig 6.6 Vision 8 (Black) Pan and Tilt Head - Electrical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Fig 6.7 Vision 8 (Black) Pan and Tilt Head - Pan Bar Unit Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

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Abbreviations
The following abbreviations are used in this publication:
ac alternating current
AAmps
AF across flats
A/R as required
ASME American Society of Mech Engineers
assy assembly
BS British Standard
BA British Association thread
BSF British Standard Fine thread
BSP British Standard Parallel Pipe thread
BSW British Standard Whitworth thread
btn button
chs cheese
C of G centre of gravity
comp compression
csk countersunk
cu cubic
c/w complete with
dc direct current
dia diameter
ft foot
hd head
hex hexagon
Hz Hertz (frequency)
IC integrated circuit
ID inside diameter
in. inch
kg kilogram
lb pound (weight)
LF Lubricated Friction
LH left hand
MISO metric thread
mmetre
mm millimetre
NNewton
NPT National Pipe thread
NI not illustrated
No. number
OD outside diameter
PCB printed circuit board
PCD pitch circle diameter
pozi Pozidriv
psi pounds per square inch
pt point
PTFE Polytetrafluoroethylene
PVC Polyvinyl chloride
RH right hand
sect section
skt socket
SWG standard wire gauge
thk thick
UNC Unified Coarse thread
UNF Unified Fine thread
VVolts
WWatts

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Technical Specification
Weight
Head 2.7 kg (5.9 lb)
Pan bar 0.2 kg (0.4 lb)
Bowl clamp) 0.14 kg (0.3 lb)
Height to mounting face 15 cm (5.9 in.)
Length 14 cm (5.5 in.)
Width 12.5 cm (4.9 in.)
Load capacity See balance graph
Tilt range ±90°
Pan range 360°
Pedestal/tripod fixing 100 mm ball

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Design Improvements
DETAILS
SERIAL No.
INFORMATION

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Section 1
Introduction and Description
Contents Para
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Introduction
1 The Vision 8 (Black) pan and tilt head is part of a range designed for broadcast professional, corporate
and educational use. It is constructed largely in aluminium and magnesium alloys to produce a robust,
lightweight unit. The unique counterbalance system enables a wide variety of camera/lens combinations to be
maintained in perfect balance over the range of tilt movements. A maximum tilt angle of 90° is available at
intermediate loadings, whilst at higher loadings the range of tilt motion is progressively reduced to 40°. A
graph is provided in Section 2 which illustrates the relationship between load and centre-of-gravity (C of G)
and may be used to ascertain the suitability of the head for any given combination of camera, lens and
accessories.
2 Drag is provided by the Vinten lubricated friction (LF) system which allows wide variation of the drag
setting on both pan and tilt axes to suit operator preference, and permits “whip” movements to be executed,
irrespective of drag setting. Pan and tilt axes are each provided with a brake.
Description
3 The Vision 8 pan and tilt head embodies a spring counterbalance mechanism, LF drag assemblies,
brakes on the pan and tilt mechanisms and a camera mounting plate.
4 The balance system is easily adjusted by a knob (2) on the rear of the head. Maximum and minimum
payloads that can be balanced, and tilt ranges, are dependent on the weight of the camera and accessories
and on the centre-of-gravity (C of G) height. The control compensates for differing platform loads by varying
the compressive force on the counterbalance spring.
5 Both the pan and tilt mechanisms incorporate the Vinten lubricated friction (LF) system to ensure
smooth movement of the camera about these axes and are fitted with control knobs (4)(7) to adjust the drag
setting. The whip-pan facility is unaffected by the pan drag setting. Both drag knobs are provided with scales
graduated from 0 to 9.
6 Friction brakes on each axis allow the head to be locked at any chosen position. The operating knobs
for both brakes (13)(15) are fitted at the left-hand side of the head.
7 Pan bar mounting points (3) are located at the rear of the head, on either side of the camera mounting
platform. A fixed pan bar (1) is supplied and is attached using a pan bar clamp, with angular adjustment
available on the mount serrations. A second pan bar may be fitted.
8 The camera is attached to the head by means of a slide plate (11) or by using the optional Quickfit
adaptor. A clamp (6) is provided to hold the slide plate in position and a lock (14) prevents its inadvertent
removal from the head.

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Fig 1.1 Vision 8 Pan and Tilt Head
(10)
(7)
(9)
(1)
(2)
(3)
(4)
(5)
(14)
(12)
(13)
(6)
(11)
(8)
(15)

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9 A ball base and clamp (8) for mounting on a 100 mm bowl is provided. An illuminated level bubble (9) is
fitted at the rear of the head, lit by pressing the switch (12). The battery for the light is housed in a
compartment in the top of the mechanism housing, closed by a cap (10). Adaptors are available which permit
installation on other mounts.

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Section 2
Operation
Contents Para
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Installing the head on a tripod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Mounting the camera . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Mounting the camera (optional Quickfit adaptor) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Balancing the head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Pan and tilt brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Pan and tilt drag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
General
1 To identify components, please refer to Fig 1.1. For further operating instructions, please refer to Vision
8 (Black) Operators Guide, Publication Part No. 3841-8.
Installing the head on a tripod
2 The Vision 8 head is supplied with an integral 100 mm ball mount and is designed for installation on a
compatible Vinten Vision tripod.
3 Adaptors are available which enable the heads to be installed on tripods or pedestals fitted with other
mountings.
4 To install the head, remove the bowl clamp assembly (8) from the head, position the head on the tripod
and refit the bowl clamp assembly from below. Level the head with the aid of the level bubble (9) and tighten
the bowl clamp. The level bubble may be illuminated by pressing the switch (12). The light will extinguish after
15 seconds.
Mounting the camera
5 Remove the slide plate (11) from the head by releasing the slide clamp (6), pressing the slide lock
release (14) and pulling the plate to the rear.
6 Attach the slide plate to the camera or camera mounting plate under the approximate centre of the
camera's weight using both fixing screws (5). Position the screws as far apart as possible.
7 Set the platform level and apply both the pan and tilt brakes (13)(15).
8 Push the slide plate and camera into the track in the platform, ensuring slide release (14) snaps into
position.

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Mounting the camera (optional Quickfit adaptor)
9 To mount the camera using the optional Quickfit adaptor, proceed as follows (Fig 2.1):
9.1 If not already attached, secure the Quickfit adaptor (17) to the slide plate (11) with the two screws
provided (5).
9.2 Free the Quickfit wedge (16) from the adaptor by simultaneously pushing in on the safety catch
(19) and operating the wedge release (18).
9.3 Fit the Quickfit wedge to the camera with the two screws (20) provided.
9.4 Insert the forward end of the wedge into the forward end of the adaptor, pushing against the
spring tension of the lock. Lower the rear of the wedge into the adaptor until an audible click indicates
that the wedge is engaged with the adaptor.
Fig 2.1 Optional Quickfit Adapter
(16)
(17)
(18)
(11)(5)
(19)
(20)

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Balancing the head
10 Balancing the Vision 8 head achieves two objectives. Firstly, when a head is correctly balanced the
operator will need a minimum amount of even effort to move the head. Secondly, once balanced, the head and
its payload can be set to any tilt position and the head will maintain this position with “hands off”.
11 The graph (Fig 2.2) illustrates the relationship between load and centre-of-gravity (C of G) height and
may be used to ascertain the suitability of the head for any given combination of camera, lens and
accessories. The shaded area of the graph corresponds to those loads/C of G heights that can be balanced
over the full tilt range. The areas to the right indicate the progressively reducing tilt range over which the head
can balance higher loads.
12 Prior to balancing the head ensure that the pan bars and any ancillary equipment have been fitted in
order to prevent upsetting the balance once it has been achieved.
12.1 Release the tilt brake (15). Turn the balance knob (2) counter-clockwise until the head falls away
from horizontal under the weight of the camera.
12.2 Release the slide clamp (6) and slide the camera backwards or forward until it balances
horizontally. Apply the slide clamp (6).
12.3 Turn the balance knob (2) clockwise until the camera does not fall away when the head is tilted
and released.
Fig 2.2 Balance Graph
90
100
130
2
3
4
5
6
7
8
110
120
140
150
160
170
180
190
200
80
70
60
in. mm
46810 12 14 16 18 kg
20 22
812 16 20 24 28 32 36 40 lb
44 48
2
4
50
±90°
±60°
±40°
C of G HEIGHT
TOTAL LOAD

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12.4 Repeat steps 12.2 and 12.3 until perfect balance is achieved, when the camera will remain set at
any angle from +90° to –90° without falling away or springing back. Re-apply the tilt brake (13).
Pan and tilt brakes
13 Friction brakes on each axis allow the head to be locked at any chosen position. The operating knobs
for the pan brake (13) and tilt brake (15) are fitted at the left-hand side of the head.
14 To apply the brake, turn the knob fully clockwise. To release the brake, turn the knob fully counter-
clockwise.
Pan and tilt drag
15 Both the pan and tilt mechanisms incorporate the Vinten liquid friction (LF) system to ensure smooth
movement of the camera about these axes. and are fitted with control knobs to adjust the drag setting.
16 Both drag knobs are provided with scales, graduated from 0 to 9.
17 The tilt drag adjustment knob (7) is on the right-hand side of the head, the pan drag knob (4) is on the
rear of the head. The whip-pan facility is unaffected by the pan drag setting.
18 To increase drag, turn the knob clockwise, towards a higher graduation. To decrease drag, turn the
knob anti-clockwise, towards a lower graduation.
NOTE: Maximum tilt angle is less than 90° for heavy payloads with high C of G - see balance
graph.

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Section 3
Tools and Materials
General
1 The following special tools and consumable materials will be required for servicing, disassembly, repair,
assembly and adjustment.
Special tools
ITEM PART No. PROCEDURE
Pin press 3431-912TL Installing dowel pin to
connect actuator shaft and
adjustment slide
Special thumb screw 3441-910TL Assembling pan and tilt drag
units
NOTE: Adhesives and lubricants are not supplied by Vinten Broadcast Ltd and should be
obtained under local arrangements
Consumable materials
ITEM PART No. USE
Grease, Easyrun 50 Z150-081 Lubrication
Grease, Castrol LM Z150-123 Lubrication
Loctite 222E Z002-075 Screw locking
Loctite 495 Z002-059 Spring cap buffer
Silcoset 153 Z002-036 Pin retainer
Adhesive, silicone RTV, Silastic 738 Z100-034 PCB housing sealant
Hot melt glue stick Z002-104 Securing wiring
Vinten fluid No. 3 3051-30 Drag fluid

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Section 4
Servicing
Contents Para
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Routine checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Battery replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Adjustments
Brake knob adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Drag control knob adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
General
1 The Vision 8 pan and tilt head is robustly made to high engineering standards and little attention is
required to maintain serviceability save regular cleaning. Attention to the following points will ensure a long
and useful life with minimum need for repair.
Cleaning
2 During indoor use, the only cleaning required should be a regular wipe over with a lint-free cloth. Dirt
accumulated during storage may be removed using a semi-stiff brush. Particular attention should be paid to
the levelling bowl and mounting face of the head and to the space between the tilting assembly and the base.
3 All Vision heads are weatherproof. However, use out-of-doors under adverse conditions will require
special attention. Salt spray should be washed off with fresh water at the earliest opportunity. Sand and dirt
acts as an abrasive and should be removed using a semi-stiff brush or vacuum cleaner
Routine checks
4 Replace the level bubble battery yearly.
5 During use, check the following:
5.1 Check the effectiveness of the pan and tilt brakes. Adjust as necessary.
5.2 Check the operation of the illumination of the level bubble. Replace battery as necessary.
6 No further routine maintenance is required.
NOTE: Use only detergent-based cleaners. DO NOT use solvent- or oil-based cleaners, abrasives
or wire brushes to remove accumulations of dirt, as these damage the protective surfaces

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Battery replacement
7 he battery illuminates the level bubble. After pressing the switch it remains lit for approximately 15
seconds.
8 The battery should be replaced yearly or whenever the illumination is considered inadequate.
9 To replace the battery (Fig 4.1):
9.1 Tilt the head forwards to allow access to the battery cover (10) and apply the tilt brake (15).
9.2 Using a thin-bladed screwdriver or similar tool, prise off the battery cover (10).
9.3 Pull out the battery (10.1) to the extent allowed by the cable and remove the connector (10.2).
9.4 Push the connector onto the terminals of the replacement battery.
WARNING!: If a payload is not fitted to the head, turn the balance knob (2) full counter-
clockwise to reduce the balancing force before tilting the head forwards.
Fig 4.1 Battery replacement
(10)
(10.1)
(10.2)
(2)(12)
(15)
(9)