Land Rover Series Operation Part 1 2 Rover Manual

							APRIL 195066and the battery should be sent to a Lucas Service Depot or Agent for
overhaul.
NOTE:- If the vehicle is to be left in the open in very cold weather, care
must be taken to ensure that the battery is in a good state of charge,
otherwise there is danger of the electrolyte freezing and consequent damage
to the battery.
DYNAMO. The dynamo is of the compensated voltage type and operates in
conjunction with the regulator unit which is housed along with the cut-out
in the control box.
The regulator causes the dynamo to give an output which varies according
to the load on the battery and its state of charge. When the battery is
discharged, the dynamo gives a high output so that the battery receives a
quick recharge which brings it back to its normal state in the minimum
possible time.
On the other hand, if the battery is fully charged,. the dynamo is arranged to
give only a trickle charge which is sufficient to keep it in good condition
without any possibility of causing damage to the battery by overcharging.
The regulator also causes the dynamo to give a controlled boosting charge
at the beginning of a run which quickly restores to the battery the energy
taken from it when starting. After about 30 minutes running, the output of
the dynamo falls to a steady rate, best suited to the particular state of charge
of the battery.
At about every 18,000 miles (30.000 Km.) or 500 hours, unscrew the
lubricator at the end of the dynamo, lift out the felt pad and spring and
about half fill the lubricator with high melting-point grease. Replace the
spring and felt pad.
When the vehicle is under-going a general overhaul, say after about 50,000
miles (80.000 Km.), it is advisable to have the dynamo checked for brush or
commutator wear by a Lucas Service Depot or Agent.
Occasionally inspect the dynamo driving belt and adjust if necessary to take
up any undue slackness by turning the dynamo on its mounting (see FAN
BELT). Care should be taken to avoid over-tightening the belt and to see
that the machine is properly aligned, otherwise undue strain will be thrown
on the dynamo bearings
Ammeter Readings.
When noting ammeter readings, it must be remembered that during daytime
running when the battery is in good condition, the dynamo gives a trickle
charge, so that the charge reading will seldom be more than three or four
amperes. 
						

							APRIL 195067A discharge reading may be given immediately after switching on the
headlamps. This usually happens after a long run, when the voltage of the
battery is high. After a short time, the battery voltage will fall, and the
regulator will respond, causing the dynamo output to balance the load.
When starting from cold, the charging current will rise until it reaches a
steady maximum at a speed of say, 20 m.p.h. (35 k.p.h.) after which it will
remain fairly high for about 10 .minutes and then fall to a steady charge
which is most suitable for the particular state of charge of the battery.
It will be noticed from the ammeter readings that the dynamo does not
charge at very low engine speeds. This is because it is not rotating fast
enough to generate sufficient energy to charge the battery. The cut-out,
which is an automatic switch connected between the dynamo and the
battery, allows the flow of current from the dynamo, to the battery only. It
closes when the dynamo is running fast enough to charge the battery and
opens when the speed is low, or the engine is stationary, thus preventing
current flowing from the battery through the dynamo windings.
CONTROL BOX.
This unit is mounted on the scuttle and houses the cut-out and dynamo
voltage regulator.
The cut-out and regulator are accurately set before leaving the works and
they must not be tampered with. The cover protecting them is sealed.
FUSE.
The single fuse is located, together with a spare, under a separate cover
alongside the control box on the scuttle. It protects the horn, windscreen
wiper, fuel tank level unit and the stop lights.
A blown fuse is indicated by the failure of all the units protected by it, and
is confirmed by examination of the fuse, which can easily be withdrawn
from the spring clips in which it fits. If it has blown, the broken ends of the
wire will be visible inside the glass tube.
Before replacing, a blown fuse, inspect the
wiring of the units, that have failed for evidence
of a short circuit or other fault which may have
caused the fuse to blow and remedy the cause
of  the trouble first.
It is important to use replacement fuses of the
correct value; the fusing value is marked on a
coloured paper slip inside the glass tube of the fuse.
If  the new fuse blows immediately and the cause of the trouble cannot be
found, have the equipment examined at a Lucas Service Depot.Fig. 29.  Blown fuse. 
						

							APRIL 195068STARTER.
When starting, observe the following points:-
1. See that the controls are properly set. (See Page 15).
2. Operate the starter switch firmly and release it as soon as the engine
fires.
3. Do not operate the starter when the engine is running. If the engine will
not fire at once, allow it to come to rest before operating the switch
again. (See Page 16).
4. Do not run the battery down by keeping the starter on when the engine
will not start.
In the event of the starter pinion becoming jammed in mesh with the
flywheel, it can usually, be freed by turning the starter armature by means
of a spanner applied to the shaft extension at the commutator end. This is
accessible by pulling off the small cap which is secured by two screws.
If any difficulty is experienced with the starter not meshing correctly with
the flywheel, it is probable that the presence of dirt on the starter drive is
preventing the free movement of the pinion on its sleeve and the sleeve and
pinion should be washed with paraffin. Alternatively, the drive may have
been damaged owing to misuse.
As in the case of the dynamo, the starter brush gear and commutator will
not normally require attention by the owner, but should be checked by a
Lucas Service Depot or Agent when the car is undergoing a general
overhaul.
COIL.
The coil requires no Attention beyond keeping its exterior clean,
particularly between the terminals, and occasionally checking that the
terminal connections are quite tight.
DISTRIBUTOR.
The contact breaker clearance should be checked and adjusted in the
following manner:- Remove the moulded distributor cap and turn over the
engine by hand until the contacts in the distributor are fully opened. Check
the gap with the gauge on the screwdriver supplied in the tool kit. This
gauge has a thickness of .012 in. (0,30 mm.) and if the setting is correct the
gauge should be a sliding fit. If the gap varies appreciably from the gauge
the contact breaker must be adjusted. To adjust, keep the engine in position
to give the maximum opening of the contacts and slacken the two screws
which secure the contact plate. Move the plate until the gap is set to the
thickness of the gauge and then fully tighten the locking screws. 
						

							APRIL 195069Fig. 30.  Contact Breaker
A – Condenser
B – Octane selector
C – Cam
D – Contact breaker pivotE – Diaphragm housing
F – Contacts
G – Lubricator
H – Screws securing contact plate
The distributor should be thoroughly cleaned at intervals.
Wipe the inside and the outside of the moulded distributor cap with a soft,
dry cloth, paying particular attention to the space between the metal
electrodes. See that the small carbon brush on the inside of the moulding
works freely in its holder.
Examine the contact breaker. The contacts must be free from grease or oil.
If they are burned or blackened, clean themFig. 31.  Cleaning contacts, with moving contact removed 
						

							APRIL 195070with a fine carborundum stone or with very fine emery cloth. Afterwards
wipe away any trace of dirt or metal dust with a petrol-moistened cloth.
Cleaning of the contacts is made easier if the contact breaker lever carrying
the moving contact is removed. To do this, slacken the nut on the terminal
post and lift off the end of the contact breaker spring which is slotted to
facilitate removal.. The lever can then be lifted off its pivot pin. After
cleaning and replacing, check the contact breaker setting.
If the contacts are badly burned, they should be replaced. Replacement
contacts must only be fitted in pairs. To remove the moving contact, follow
the procedure outlined in the previous paragraph. To remove the plate
carrying the fixed contact take out the two screws complete with spring and
plain washers. Fit the replacement contacts by reversing these instructions
and set the contact breaker gap to .012 in., (0,30 mm.) by means, of the
gauge supplied in the tool kit.
HIGH TENSION CABLES. The high tension cables are those connecting
the coil to the distributor and the distributor to the sparking plugs. When
these cables show signs of perishing or cracking they must be replaced by 7
mm. rubber-covered ignition cable.
The method of connecting H.T. cable to the coil is to thread the knurled
moulded nut over the cable, bare the end of the cable for about 1 in. (7
mm.), thread the wire through the washer removed from the end of the
original cable and bend back the wire strands. Screw the nut into its
terminal.Fig. 32.  Fitting H.T. cable to ignition coil.A – H.T. cable
B – Washer
C – Cable strands
D – Moulded terminal 
						

							APRIL 195071Fig. 33.  Connecting H.T. cable to distributor
A – Carbon brushB – Screws securing cable
To connect cables to the distributor, unscrew the pointed fixing screws on
the inside of the moulding and push the cables, which should not be bared
but cut off flush to the required length, well home into their respective
terminals and tighten the fixing screws. The screw securing the centre cable
is accessible when the carbon brush is removed.
REPLACEMENT BULBS. Instructions for replacing most of the bulbs
listed here are given in the following pages; in other cases your dealer will
be able to help you.
LUCASVOLTWATTHeadlamps
Vehicles numbered prior to 06112001No. 1711236/36Double filament
(straight dip).
Vehicles numbered 06112001 1 onwards:-
Home models, R.H headlampNo. 1621236Single filament.
Home models, L.H. headlampNo. 3001236/36Double filament.
(dip to left).
R.H.D. Export modelsNo. 3001236/36Double filament.
(dip to left).
L.H.D. Export modelsNo. 3011236/36Double filament.
(dip to right).
SidelampNo. 207126Single pole
Stop and tail lampsNo. 207126Single pole
Instrument panel lightsNo. 207126Single pole
Ignition and mixture control warning lightsNo. 9702.55M.E.S.
Oil pressure warning light—122.4M.E.S. 
						

							APRIL 195072HEADLAMPS.
(Vehicles numbered prior to 06112001).
The setting of the headlamp should be checked by placing the vehicle in
front of a blank wall at the greatest possible distance, taking care that the
surface on which the vehicle is standing is not sloping relative to the wall.
The lamps are fitted with dual-filament bulbs and must be set so that the
main beams of light are parallel with the road and with each other.    If
adjustment is necessary, slacken the fixing nut at the top of the lamp and
move the lamp on its adjustable mounting to the required position. Finally,
tighten the locking nut. The mounting is accessible when the bonnet top
panel is raised.
To enable the best light to be obtained from the headlamps the bulb
filaments must be as near as possible to the focal points of the reflectors. If
a bulb is out of focus, the lamps will have a poor range and will cause
dazzle to approaching traffic. Before lamps leave the Works, the bulbs are
focussed to give the best results and provided that Lucas Genuine Spare
Bulbs are fitted as replacements, it should not be necessary to alter the
setting. If, however, an ordinary bulb has to be fitted, it may be necessary to
re-focus by slackening the screw on the clamping clip and moving the bulb
backwards and forwards until the best lighting is obtained. When focussing,
it is an advantage to cover one lamp while testing the other. If the lamp does
not give a uniform long range beam without a dark centre, the bulb needs
adjusting. Tighten the clamping clip after the best position for the bulb has
been found.
To remove the lamp front, slacken the fixing screw at the top of the lamp
and swing it upwards. Remove the front from the top of the lamp first. The
reflector is secured to the lamp body  by means of a rubber bead and can be
withdrawn when this is removed. When replacing, the projection on the
reflector rim must be fitted into the location at the bottom of the lamp body
and the reflector must be secured by refitting the rubber bead, the thicker lip
of which must be located between the reflector rim and the lamp body.
When refitting the lamp front, locate the bottom of the rim first, then press
at the top and secure by means of the fixing screw. 
						

							APRIL 195073HEADLAMPS. (Vehicles numbered 06112001 onwards). To remove the
light unit for bulb replacement, first slacken the securing screw and lift off
the rim. Remove the dust-excluding rubber, when three spring-loaded
adjustment screws will be visible. Press in the light unit against the tension
of the screw springs and turn it in an anti-clockwise direction until the heads
of the screws can be disengaged through the slotted holes in the light unit
rim. Twist the back shell in an anti-clockwise direction and pull it off; the
bulb can then be removed.Fig. 34.  Headlamp bulb replacement.A – Light unit.
B – Vertical setting adjusting screw.
C – Back shell.D – Horizontal setting adjusting screw.
E – Bulb holder.
F – Dust excluding rubberFit the replacement bulb in the holder, taking care to locate it correctly and
replace the back shell. Position the light unit so that the heads of the
adjusting screws protrude through the slotted holes in the flange, press the
unit in and turn in a clockwise direction. Replace the dust excluder and
front rim.
The headlamps should be set so that the main driving beams are parallel
with the road surface. If adjustment is required, remove the rim as described
above. The vertical setting may then be made by turning the screw at the top
of the lamp and horizontal adjustment can be altered by the screw at each
side of the light unit.
SIDE LAMPS. Slacken the screw at the top of the lamp locating it in the
scuttle panel and turn the lamp in a clockwise direction until the tongue at
the bottom is disengaged from the scuttle. The lamp front and reflector can
then be withdrawn.
The bulb is accessible when the holder which is clipped to the back of the
reflector is turned to the left and pulled off. 
						

							APRIL 195074When refitting, the front and reflector, locate the tongue on the lamp in the
slot in the scuttle and turn the lamp in an anti-clockwise direction.  Finally
secure by means of the locating screw.
STOP AND TAIL LAMPS. To effect bulb replacement, slacken the
securing screw and swing open the cover; the bulbs are then accessible in
the lamp body.
CLEANING LAMP REFLECTORS. The reflectors are protected by    a
transparent and colourless covering which enables any accidental finger
marks to be removed with chamois leather or a soft cloth without affecting
the surface of the reflector; metal polish must not be used           for cleaning
reflectors.
HORN. All horns before being passed out of the Works are adjusted to give
their best performance and will give a long period of service without any
attention; no subsequent adjustment is required.
If the horn fails or becomes uncertain in its
action, it does not follow that the horn has
broken down. First ascertain that the trouble is
not due to some outside sources e.g., a loose
connection, short circuit in the wiring of the
horn, discharged battery or blown fuse. If the
fuse has blown, examine the wiring for the fault
and then replace the fuse.
It is also possible that the performance of a horn
may be upset by the fixing bolt working loose,
or by some component near the horn being
loose. If after carrying out the above
examination the trouble is not rectified, do not
attempt to dismantle the horn, but return it to a
Lucas Service Depot or Agent.
WINDSCREEN WIPER. To start the wiper, pull out the handle to
disengage it from the switch. Then move the switch lever to the left to the
on position.“If the horn becomes
uncertain in its
action.” 
						

							APRIL 195075To stop the unit, move the switch downwards to the off position, pull out
the handle and turn the end into the top of the switch control.
No adjustment or lubrication is necessary, as the gears are fully lubricated
before leaving the Works.
To remove the arm and blade assembly, slacken the fixing nut and tap
sharply to release the collet which clamps the arm on to the spindle. Then
remove the complete assembly.
When fitting the replacement arm and blade, slacken the securing nut and
push the arm fixing brush over the end of the spindle as far as it will go.
Secure by tightening the nut.
To fit a new blade only, take out the rubber bush securing the old blade to
the arm. Insert the tongue on the replacement blade through the slot in the
arm and secure it by fitting the rubber bush through the hole in the tongue.
IGNITION WARNING LIGHT. The ignition switch, besides forming a
means of stopping the engine, is provided for the purpose of preventing the
battery being discharged by the current flowing through the coil windings
when the engine is stopped. A red warning light on the instrument panel
appears when the ignition is switched on and the engine is running very
slowly or is stationary.
Should the warning lamp bulb burn out, this will not in any way affect the
ignition system, but it should be replaced as soon as possible in order to
safeguard the battery.
MIXTURE CONTROL WARNING LIGHT. The appearance of the amber
mixture control warning light on the instrument panel indicates that the
COLD START control has been left out inadvertently and must be pushed
right in at once.
If the warning lamp bulb burns out, it will not affect the operation of the
mixture control, but it should be replaced as soon as possible to ensure that
the control is pushed home at the earliest possible moment, and so
safeguard against unconscious driving with the mixture control in an
intermediate position, with consequent high petrol consumption and dilution
of the engine oil.