Schumacher ProCat Classic User manual

S1584
www.racing-cars.com
71-73 Tenter Road
Moulton Park
Northampton
NN3 6AX
Instruction Manual ISS01
Classic
TM

01 www.racing-cars.com
IMPORTANT SAFETY NOTES
We strongly recommend that anyone driving RC cars, or organising events, should obtain third party liability insurance. In the UK this
can be done by joining the BRCA. www.brca.org
This product is not suitable for children under the age of 14, without the direct supervision of a responsible adult.
Select an area for assembly that is away from the reach of small children.
The parts in this kit are small and can be swallowed by children causing choking and possible internal injuries.
Exercise care when using hand tools and sharp instruments during assembly.
Carefully read all manufacturers warnings and cautions for any additional items used in the construction.
In line with our policy of continuous development the exact details of the kit may vary.
DO NOT use this car on public roads or in places where it can interfere with traffic, people or animals.
Always check the operation of the radio with the wheels off the ground, before using the car.
Make sure the radio and car batteries are fully charged before use.
Disconnect and remove the battery from the car when not in use.
Always store and charge LiPo batteries in a fireproof container.
DO NOT put fingers or any objects inside rotating or moving parts as this may cause injury.
Make sure the charger is correctly set for the type of battery you are using.
Incorrect charging may cause a fire.
Insulate all exposed electrical wiring. Exposed or damaged wires can cause short circuits and fire.
The motor and speed controller can become hot during use. DO NOT touch them immediately after using your car as this may cause injury.
ADDITIONAL ITEMS REQUIRED
TOOLS REQUIRED ICON KEYS
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Radio Equipment
Steering Servo
Motor and Pinion Gear
Electronic Speed Controller
1.5mm Hex Driver - U2789 (Option)
2.0mm Hex Driver - U2790 (Option)
2.5mm Hex Driver - U2791 (Option)
4.0mm Phillips Screwdriver - AM140140
5.5mm M3 Nut Driver - U2795
Body Reamer - U2818
Pliers - CR528
Side Cutters - CR527
Soldering Iron - CR275
Solder - U3107
Curved Scissors - CR044
Circlip Pliers - HW010
2S Shorty LiPo
or Nimh/NiCd
Polycarbonate PaintPro Tyre Glue
Battery Charger
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Caution/Important note. Please read.
!
Left-Hand Side of car
LH
Right-Hand Side of car
RH
TM
CORE RC Molybdenum
Thrust Race Grease 10ml - CR755
CORE RC Medium Thread
Lock 3ml - CR520
CORE RC 522 Pro Tyre
Glue 20g + 2 Nozzles - CR522
CORE RC Silicone Ball Diff
Grease 10ml - CR753
THREAD LOCK
CA GLUE
SILICONE GREASE
CORE RC High Performance
Lithium Grease10ml - CR752
LITHIUM GREASE
MOLY GREASE

02
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BAG A - Step 01
A x1
M3x 12 Pan Hd Screw
A
Use a 3mm drill bit to drill
the undertray holes.
!
BAG A - Step 02
A x4
No4x 1/2” Pan Hd Screw
A
A
NiMh & NiCd
Battery Fitting
!Battery Not
Supplied.
!
Before proceeding, decide
which type of batteries you
plan to use.
NiMh & NiCd - Use Step 02
LiPo - Use Step 03
Align the chassis with
the undertray and mark
these four holes on the
undertray. Then ream
to 3.5mm diameter.
!
!File lugs to
allow better
cell location.

TM
BAG A - Step 03
B x4
M3x 8 Pan Hd Screw
C x2
M3x 8 Csk Hd Screw
B
C
C
LiPo
Battery Fitting
A x2
M4x 20 Grub Screw
B
Make two.
For LCG LiPo batteries use option posts U7046.
!
A
!Battery Not
Supplied.
03 www.racing-cars.com
8mm
BAG A - Step 04
A x7
A
No4x 3/8” Pan Hd Screw
AA
!
NOTE: This screw is a
temporary fit to aid assembly.

04
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BAG A - Step 05
A x8
No2x 3/16” Pan Hd Screw
A
A
!
Set the eccentric as
shown, for now.
BAG A - Step 06
A x2
Ø2.0 x 7.8mm Pin
B
B
A
B x2
Ø8 x Ø16 x 5mm Bearing

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BAG A - Step 07
B x1
Grooved Thrust Washer (Large)
C x1
Thrust Race
D x1
Grooved Thrust Washer (Small)
B
D
D
A
E
E x2
Ø6 x Ø3.2 x Ø0.3mm Disc Spring
BAG A - Step 08
A x6
A x2
Ø8 x Ø16 x 5mm Bearing
A
A
No2x 3/8” Pan Hd Screw
!Note the larger grooved washer B.
!Ensure the timing pip on the
outer pulleys aligns with the
hole in the cental pulley.
!Note the smaller grooved washer D.
MOLY GREASE
CA GLUE
Engage the drive
dogs and push
together firmly.
!
BAG A - Step 09
A x1
C x14
Ø3mm Chrome Steel Diff Ball
B x1
Ø8 x Ø16 x 5mm Bearing
M3 Nyloc Nut
SILICONE GREASE
SILICONE GREASE
!IMPORTANT
Set the differential as follows.
Tighten the diff screw fully
and then undo 1/4 of a turn.
B
A
C
CA GLUE
Engage the drive
dogs and push
together firmly.
!
Ensure the disc
springs are
assembled as shown.
!
E
!IMPORTANT
Note Silicone Grease
MUST be used on the
Differential balls.
Remove pip from moulding.
!
!
Ensure the washer and carrier is fully
degreased before applying CA glue.
Two part epoxy may also be used.
!
Ensure the washer and carrier is fully
degreased before applying CA glue.
Two part epoxy may also be used.
Remove pip from moulding.
!

06
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BAG B - Step 10
1
2
3
!IMPORTANT
The sequence of drawings below shows the
assembly procedure of all universal joints,
driveshafts, axles and diff outputs.
Warming the plastic parts will help make the
assembly easier.
!IMPORTANT
To adjust the diff setting when assembled
place an allen key into the screw head slot
and turn the output on the opposite side.
U.J Spanner U.J Spanner
BAG B - Step 11a

07 www.racing-cars.com
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BAG B - Step 12
A x8
No2x 3/16” Pan Hd Screw
A
A
A
A
Set the eccentric as
shown, for now.
!
BAG B - Step 11b
A x2
No4x 3/8” Pan Hd Screw
!NOTE: This screw
is a temporary fit
to aid assembly.

08
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A
A
D
E
B
D
D
B
A
TM
BAG B - Step 14
A x2
B x2
C x2
D x4
E x1
No2x 5/16” Pan Hd Screw
BAG B - Step 13
A x1
Ø2.0 x 7.8mm Pin
B x1
‘O’ Ring - Black
B
M2x 16 Pan Hd Screw
M3x 10 Pan Hd Screw
M2 Nut
M2 Washer
C
A
B
D
D
D
C
C
BAG B - Step 15
A x2
B x2
C x2
D x4
M2x 16 Pan Hd Screw
M2 Nut
M2 Washer
M3 Washer
!
NOTE: Ensure the slot in the
spur gear aligns with pin A.
!
NOTE: Be careful when using threadlock.
Use only a small amount on the nuts. It
must not get on the brass pivots.
Ensure the steering assembly rotates
freely.
!
NOTE: Be careful when using threadlock.
Use only a small amount on the nuts. It
must not get on the brass pivots.
Ensure the steering assembly rotates
freely.
THREAD LOCK
THREAD LOCK
THREAD LOCK
THREAD LOCK
THREAD LOCK
THREAD LOCK

09 www.racing-cars.com
TM
A
BAG B - Step 16
A x4
No4x 3/8” Pan Hd Screw
A
A
A
BAG B - Step 17
!
Solder the anti-roll bar to
the roll bar balls as shown.
!
Cut out the belt cover using the trim
lines as a guide. Drill the 3mm holes
as referenced by the dimples.

A
A
C
B
A
TM
BAG B - Step 18
A x2
No4x 1/4” Pan Hd Screw
BAG C - Step 19
A x1
C x14
Ø3mm Chrome Steel Diff Ball
B x1
Ø8 x Ø16 x 5mm Bearing
M3 Nyloc Nut
SILICONE GREASE
SILICONE GREASE
Slide the Anti Roll
Bar under the belt.
!
10
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Engage the drive
dogs and push
together firmly.
!
CA GLUE
Remove pip from moulding.
!
!
Ensure the washer and carrier is fully
degreased before applying CA glue.
Two part epoxy may also be used.

TM
E
D
C
B
A
A
A
BAG C - Step 20
B x1
Grooved Thrust Washer (Large)
C x1
Thrust Race
D x1
Grooved Thrust Washer (Small)
E x2
Ø6 x Ø3.2 x Ø0.3mm Disc Spring
A x1
Ø8 x Ø16 x 5mm Bearing
BAG C - Step 21
A x2
No4x 1/2” Pan Hd Screw
SILICONE GREASE
MOLY GREASE
!Assemble as before. Page 06 Step 10
!
To adjust the front differential
when assembled, place an allen
key into the screw head slot and
turn the output on the opposite side.
11 www.racing-cars.com
!IMPORTANT
Set the differential as follows.
Tighten the diff screw fully
and then undo 1/4 of a turn.
CA GLUE
Engage the drive
dogs and push
together firmly.
!
Ensure the disc
springs are
assembled as shown.
!
!Note the larger grooved washer B.
!Note the smaller grooved washer D.
!
Ensure the washer and carrier is fully
degreased before applying CA glue.
Two part epoxy may also be used.
Remove pip from moulding.
!

TM
BAG C - Step 22
A x4
M3 Nyloc Nut
C x2
No4x 3/8” Pan Hd Screw
D x4
M3x 40 Csk Hd Screw
B x4
M3 Washer
!
Leave loose while adjusting
front belt tension.
!Rear Belt Tension Adjustment.
The eccentrics are already assembled
in their loosest position, rotate as
shown to tighten the belt.
Ensure both sides are set the same.
!IMPORTANT.
Always set the tension of the two rear
belts before the longer front belt.
12
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!Before fitting, trim the
bumper as show.
BB
A
A
A
C
D
D
BELT TENSIONS
As a starting point, aim for a 2-3mm deflection as you
gently push the allen key. Push at the centre of the
belt run (as pictured).
!

13 www.racing-cars.com
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BAG C - Step 23
BAG C - Step 22 Cont.
B x2
No4 x 1/2” Pan Hd Screw
C x2
M3 x 10 Pan Hd Screw
A x4
No4x 3/8” Pan Hd Screw
!
C
C
B
A
A
A
!
!
Tighten the four nuts AFTER the
required front belt tension has
been acheived.
!
FRONT BELT ADJUSTMENT.
Tighten the screws (turn clockwise)
to tighten the belt tension. To relax
the tension turn anti-clockwise.
!
Check tension by lightly
pushing the belt with an
allen key as shown. Aim
for a belt deflection of
around 5mm.
Note orientation
of block.
Remove temporary screw
and fully tighten here.

14
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BAG C - Step 24
A x2
No4x 1” Pan Hd Screw
BAG C - Step 25
A x2
A x2
No4x 1” Pan Hd Screw
BAG C - Step 26
No4x 3/4” Pan Hd Screw
RH
LH
LH
A
A
A
!
The pivot pin is a tight
fit in the suspension mounts.
!
Remove temporary screw
and fully tighten here.

TM
RH
A x2
BAG C - Step 27
No4x 3/4” Pan Hd Screw
15 www.racing-cars.com
BAG D - Step 28
Crashback ‘O’ Ring
A x3
!
Stretch bands over
the two lugs.
!
The pivot pin is a tight
fit in the suspension mounts.
BAG D - Step 29
A x2
No4x 3/8” Pan Hd Screw
B x2
‘O’ Ring - Black
A
A
A
BB
A
!
Wishbone marked ‘A’.
The pivot pin is a tight
fit in the pivot block.
RH

16
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LH
BAG D - Step 30
A x2
No4x 3/8” Pan Hd Screw
B x2
‘O’ Ring - Black
BAG D - Step 31
B x2
Ø8 x Ø16 x 5mm Bearing
A x1
M3x 10 Pan Hd Screw
BAG D - Step 32
B
A
A
A
A x1
M3 Nyloc Nut
!IMPORTANT
The sequence of drawings above shows the
assembly procedure of all universal joints,
driveshafts, axles and diff outputs.
Warming the plastic parts will help make the
assembly easier.
RH
RH
!
The bearings are a tight fit.
Ensure they are pressed
in fully.
!
Wishbone marked ‘B’.
The pivot pin is a tight
fit in the pivot block.
BA
A

TM
A x2
BAG D - Step 33
17 www.racing-cars.com
BAG D - Step 34
B x2
Ø8 x Ø16 x 5mm Bearing
A x1
M3x 10 Pan Hd Screw
A
B
B
A
A
BAG D - Step 35
A x1
M3 Nyloc Nut
A
!IMPORTANT
The sequence of drawings above shows the
assembly procedure of all universal joints,
driveshafts, axles and diff outputs.
Warming the plastic parts will help make the
assembly easier.
‘e’clip
Note the shape of the turnbuckle.
This side of the turnbuckle is the left
hand thread.
!
RH
Thread
LH
Thread
Longer
Shorter
RH
Thread
LH
Thread
18mm
!
The bearings are a tight fit.
Ensure they are pressed
in fully.
RH
LH
LH

18
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BAG E - Step 37
B x2
Ø8 x Ø16 x 5mm Bearing
A x3
M3x 10 Pan Hd Screw
BA
A
A
B
A x2
BAG D - Step 36
‘e’clip
C
C x1
M3 Nyloc Nut
Longer
Shorter
RH
Thread
LH
Thread
THREAD LOCK
THREAD LOCK
THREAD LOCK
!IMPORTANT
The sequence of drawings above shows the
assembly procedure of all universal joints,
driveshafts, axles and diff outputs.
Warming the plastic parts will help make the
assembly easier.
18mm
LH
LH
Note the shape of the turnbuckle.
This side of the turnbuckle is the left
hand thread.
!
RH
Thread
LH
Thread
A
A

TM
19 www.racing-cars.com
!IMPORTANT
The sequence of drawings below shows the
assembly procedure of all universal joints,
driveshafts, axles and diff outputs.
Warming the plastic parts will help make the
assembly easier.
!Gently tighten screws , until the
screw head is flush with wishbones.
!The pivot pins are designed to be
a very tight fit in the suspension
mounts. Take care when fitting.
BAG E - Step 38
B x2
Ø8 x Ø16 x 5mm Bearing
A x3
M3x 10 Pan Hd Screw
C x1
M3 Nyloc Nut
BAG E - Step 39
A x4
No2 x 1/2” Pan Hd Screw
B
B
C
A
A
A
A
A
A
A
A
THREAD LOCK
THREAD LOCK
THREAD LOCK
RH