PROTEA BG 760 User manual

SPARES
&
INSTRUCTION MANUAL

Ref. No.: CK 91/04496/23 Vat No.: 4830119907
Tel: [phone]
011 822 1850
Fax: [phone]
Mobile: [phone]
Physical Address
BEDFORDVIEW
Telephone/Fax Numbers
Email: [email protected]
Email: [e-mail]
For further information on any Protea products, please visit our website www.proturf.co.za
Postal Address
Germiston
Gauteng
South Africa
Knights
2008 GAUTENG
Manufacturers of Protea Range of Mowers, Sodcutters, Scarifiers
PROTEA TURF EQUIPMENT cc
SOUTH AFRICA
32 Shaft Road
CONTACT DETAILS:
P.O.BOX 1673

SPECIFICATIONS
MOTORS CUTTING CYLINDER
Standard 220 Volt 1,5kw 1 phase 762mm long x 152mm diameter
Other single or three phase motors (30” x 6”) 16 single helix
available on request reversible blades; each blade
25mm (1”) x 8 gauge.
(10 blade optional)
TRANSMISSION BOTTOM BLADE
Twin “V” Belt to countershaft then by Precision ground to less than 1.3mm
Heavy duty drive chains and sprockets to (.050”) at the cutting edge and
attached roller and cutter to the cast iron soleplate by 9
countersunk machine screws.
1mm Blade also available.
ADJUSTMENTS
Height of cut: by independent micro-adjusters
with dual lock nuts.
Cutter to bottom blade: By independent
micro-adjusters with dual lock nuts
(Precision setting bar supplied)
GEARBOX
16 Bladed Cutting Cylinder
Heavy-duty gears, 2 speed on traverse constant
Cutter revolutions. High gear 5.15km/h (3.2mph).
Clip frequency 200 clips per meter
(186 clips per yard). Low gear 3.88km/h (2.1mph)
Clip frequency 291 clips per meter (276 clips per yard)
MASS BEARINGS
(Complete with Grassbox) Sealed ball races fitted throughout
110/220 Volt –156 kg (343 lbs) (Prepacked with Lubricant)

1Know your controls. Read the owner's manual 13 Stop the engine whenever you leave the
carefully. Learn how to stop engine quickly in an mower, even for a moment.
emergency. 14 Stop the engine before pushing mower
2Make sure the lawn is clear of sticks, stones, across gravel drives, walks or roads.
bones, wire and debris. They could be thrown
by the blade. 15 Do not allow children or people
unfamiliar with these instructions to use
3Stop the engine and disconnect spark plug wire the mower.
before checking or working on the mower. 16 On slopes or wet grass, be extra careful of
4Before using, always visually inspect to see that your footing.
blade bolts and cutter assembly are not worn or
damaged. Replace worn or damaged blades 17 Never cut grass by pulling the mower towards
bolts in sets to preserve balance. you.
Damaged blades and worn bolts are a
major hazard. 18 Never use an electrically powered mower in
the rain or when grass is wet.
5Check all nuts, bolts and screws often, always
be sure the mower is in safe operating 19 Be extremely careful when using a ride on
condition. Use only replacement parts made
mower on slopes.
and guaranteed by the original manufacturer
of your mower 20 Never leave wind-up starters in a wound
condition.
6
Add fuel BEFORE starting engine. Avoid spilling
petrol and do not fill the tank while the engine is 21 Do not over speed the engine or alter governor
running or while you are smoking. settings. Excessive speed is dangerous
and shortens mower life.
7Do not mow whilst people, especially children
or pets are in the mowing area. 22 It is advisable to wear suitable eye protection
when operating a mower.
8Never use the mower unless the grass catcher ,
or guards provided by the manufacturer, 23 Turn the fuel off at the conclusion of mowing
are in position. and reduce the throttle setting during
engine run-ou.
9Do not mow barefoot or in open sandals.
Wear long trousers and heavy shoes. 24 Store fuel in a cool place in a container
specifically designed for the purpose. In
10 Disengage all blade and drive clutches before general, plastic containers are unsuitable.
starting.
25 Never pick up or carry a mower when it is
11 Start the engine carefully with feet well away operating.
from the blades.
12 Do not operate engine in a confined space where
exhaust fumes (carbon monoxide) can collect.
POWER LAWNMOWER SAFETY PRECAUTIONS

1
MAINTENANCE AND ADJUSTMENT
Normal Speed: 3.2 m.p.h –116 cuts per yard (127 cuts per meter)
Low Speed: 2.1 m.p.h –167 cuts per yard (183 cuts per meter)
Speed Control
To change speed, stop motor and move
ribbed sliding sleeve (A) inwards to engage
normal speed outwards for low speed as
required. It may be necessary to twist the
sleeve or countershaft backwards and
forwards slightly whilst sliding the sleeve
into position to allow the gear teeth to line
up and mesh fully.
Height Adjustment
To cut lower,
slacken quadrant
clamp bolt nuts (1),
also the lower
adjusting screw nut.
Then tighten top
adjusting screw nut
until desired height
of cut is obtained.
To cut higher,
reverse procedure.
Re-tighten all nuts
after desired setting
is obtained
Refer setting gauge
instructions.
A
9
3
1
14
14
4
2
8
7

2
To check the mower for alignment –Your mower is designed to produce
the perfectly flat cut that is required for a top quality green. Ridging or
stepping between cuts means that the height of cut is unevenly set or more
likely, that the mower is “out of square”. That is, the rear roller is not
perfectly in line with the cutting edge of the bottom blade. This condition
can be brought about by transport of the mower or undue stress caused by
bumping while moving the mower from the equipment shed onto the green.
Re-alignment can be achieved by different means but the recommend
procedure is
1. Lay mower back on the handle
2. Chalk the thin front edge of the bottom blade about 6” of its length
at both ends.
3. With the front roller remaining in approximately its normal height
setting, “sight” the bottom of the front roller relative to the chalked
cutting edge of the blade
4. Adjust the front roller into exact alignment with the cutting edge,
continually sighting while adjustment proceeds
5. Lock the roller and re-check
6. Now use your height setting bar as an alignment tool by placing the
bar against the front roller and the rear roller on the extreme LEFT
HAND SIDE (Chain cover Side)
7. Adjust the setting bar screw so that it just contacts the bottom blade
cutting edge.
8. Test the right hand side of the rear rollers with the same setting, and
adjust the rear roller up or down Loosen (A) until the same screw
contact is achieved on the blade.
9. As the movement of the rear drum could affect the original L.H.S
setting slightly, reset he screw at the L.H.S. and recheck the R.H.S.
10. All elements of you machine will now be in perfect alignment.
11. After tightening all adjustments a final check should be made.
12. The required height of cut can now be checked and set in the
normal manner
While the procedure may seem complicated it is in fact very simple to
perform and can be carried out in less than 15 minutes. The sighting is easy
and accurate because it is done from the front roller, which is nearest to the
operator. A machine that is “true” will pay dividends by precision cutting
of your green.
Setting Gauge
This illustrates the method of setting the gauge to
the height of cut, where in this instance height of
cut is a 20-cent piece and a 5-cent coin. The
distance between the setting gauge bar and the
underside of the adjustable screw head represents
the height of cut. Lock the screw in the desired
position with the wing nut. To use the setting
gauge, rest it against the underside of the front and
rear roller, as illustrated, and by adjusting the front
roller, the desired height of cut will be obtained
when the underside of the screw head lightly
touches the top cutting edge of the bottom blade
across its full width.
Note: When using the setting gauge, take
care not to force the head of the adjusting
screw onto the bottom blade, as this could
distort the blade and affect the setting.
A

3
Cutter
To adjust the cutter setting, slacken cutter
hanger clamp bolts (4) at each side of the
machine, and proceed as follows;
Adjustment: Slacken the top nuts (5) on
adjusting screws. Then by tightening the
bottom nuts (6), the cutter is lowered on to the
bottom blade. To raise the cutter, loosen the
bottom nuts and tighten the top nuts. Re-
tighten cutter hanger clamp bolt nuts. Always
adjust cutter to bear very lightly on bottom
blade. If the cutter rubs harshly on the bottom
blade, there will be excessive wear of both
cutter blades and bottom blade, and an
unnecessarily heavy load on the power unit.
A grass trough is
incorporated that can be
adjusted closely to the
rear drum so that grass
and dirt build up is
scraped from the drum
and caught in the trough.
To empty:
Remove the cover plate from the trough opening in the side frame. The cover unclips by pivoting it
upwards. Withdraw the trough, as illustrated. When replacing, the end of the trough could come into
contact with its adjusting screw, when halfway in. A twisting action will allow the bottom edge of the
trough to clear the screw and push right in. Replace the cover plate.
Note: the trough can be withdrawn more easily if the deflector clamp bolts are loosened and the
deflector lowered to allow extra clearance.
Adjustment –The adjusting screw can only be operated when the trough is removed as it is located under
the center of the trough. To adjust trough closer to roller, release lock nut and lower screw lightly –to
move it away, raise screw slightly. Replace trough and check clearance from the drum. If satisfactory
withdraw trough and tighten lock nut.
10
6
5
4

4
Reversing Cutter:
A feature of this machine is that the cylinder may be easily removed, reversed end for end
and replaced. This provides a new keen cutter edge. If the bottom blade is badly worn, this
should be replaced at the same time that the cutting cylinder is reversed or replaced.
To withdraw cutter from machine, first remove cutter chain (7), sprocket (8) and grass
deflector (9), refer illustration PAGE 1. The sprocket is removed by inserting tommy bar in
hole in sprocket and giving tommy bar a sharp tap with hammer, NOTE: The sprocket has a
left hand thread, to unscrew, turn in a clockwise direction. Remove the grass deflector
and the deflector-supporting bar. Remove the cutter hanger caps by undoing the holding
bolts (10) at each side of the machine. Then the cutter may be taken from the machine by
lifting and moving to the chain side of the machine. The opposite side will then clear side
frame. Continue with a diagonal lift to complete removal. Remove the nut from the end of
the cutter (it has a left hand thread). Reposition this nut at the other end of the cutter. Turn
the cutter end for end and replace in the machine. Then reverse operations used to remove
cutter from machine. Replace all bolts and tighten firmly. After reversing cutter it will be
necessary to adjust the same. Also see detail on chain adjustment
Important:
When reversing or replacing the cutter do not remove the cutter bearing
hangers. Remove the bearing caps only as instruction. The bearing caps
must not be changed over; each cap must be replaced in its original
location.
Clutch:
To be certain that the clutch is fully
engaged without possibility of slip, there
should be approximately 1½” of free
movement (at the clutch operating lever
knob) before the resistance of clutch
operation is felt. This adjustment is made
by means of the self-locking nut “E”
E

5
Chains:
Adjustment: Loosen chain adjuster locking bolt (14) and slide the chain adjuster in the desired
direction. A chain should ever be adjusted tightly. It is advisable to leave the cutter chain with a
little slackness so that slight adjustment of the cutter can be made without having to re-adjust this
chain each time.
Grass Deflector:
The grass deflector is adjustable to permit grass to be thrown into the box at the desired angle.
Adjustment: Loosen clamping screws and raise or lower as required.
V Belt Drive:
The V Belt tension is correct when there is about ½” up and down movement of the belt midway
between the pulleys.
Adjustment: To tighten belt, remove motor cover, loosen four nuts holding down the motor, and
force the motor to rear. Then re-tighten nuts.
Note: V Belts are designed to run dry, and under no condition is belt dressing required.
Lubrication:
Pre-lubricated, sealed ball races
are fitted to the cutter; drum shaft,
countershaft and front roller. No
further lubrication is necessary to
theses 8 races. Drums are fitted
with special self-lubricating
bushes and do not require
lubrication.
Driving Chains: grease or
medium oil used sparingly
Gearbox: use medium oil at
points B, C and D. Use grease
sparingly on gear teeth
C
D
B
Front Roller Scraper:
Loosen clamp bolt each end, adjust scraper to just clear the roller and re-tighten clamps.
Cleaning:
This mower is constructed of first class materials, and will give longer and more efficient service if
kept clean. After cutting and before putting machine away, wipe blade down with an oily rag.
Occasionally check nuts and bolts for tightness.
Warning: State Electricity Authority regulations provide that it is always necessary to disconnect
power supply before effecting and adjustments to the machine.

6
2
3
6
7
4
5
1
SECTION 1
REFER FIGURE 1
ILLUS.
NO DESCRIPTION PART NO.
Side Frame Assy. LH
Side Frame L.H. (Click System)
Side Frame Assy. RH
Side Frame R.H. (Click System)
Scraper Trough Assy.
Trough Cover Plate Assy.
Trough Pivot Bar
Washer M10 Spring Washer
Nut M10
1
1
2
2
3
4
5
6
7
305795
305800
305779
305782
305664
305728
305701
Standard
Standard
FIGURE 1

7
SECTION 2
REFER FIGURE 2
ILLUS. NO. DESCRIPTION PART
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Main Stay Tube Assy.
Housing Side Seat Block
Bolt 1” x 3/8” UNF
Bolt 1 ¼ x 3/8 UNF
Washer 3/8 INT. S/Proof
Nut 3/8 UNF
Seat Block Clamp
Washer M2
Nut M8
Deflector Strip Assy.
M6 x 12 Set Screw
M6 Spring Washer
Sole Plate
Trough Support
Pan Head Screw M6 x 25
Nut M6
Bottom Blade LC
Bottom Blade Screw (9 off)
Sole Plate Mounting Bolt 1 ¼ x 7/16 UNF
Nut 7/16 UNF
Washer 7/16 EXT. S/Proof
301428
302076
Standard
Standard
Standard
Standard
302084
Standard
Standard
301065
Standard
Standard
301735
305752
Standard
Standard
393000
2071924
Standard
Standard
Standard
FIGURE 2
1
4
5
6
5
6
5
6
5
3
6
7
7
2
9
8
9
8
10
11
11
14
12
12
13
21
20
19
21
20
19
17
18
18
18
18
18
2
16
15

FIG 3
8
`
1
2
1
3
1
3
2
5
4
6
7
7
8
8
9
9
9
10
10
10
10
M8 x 20
Serscrew
springwasher &
washer
1
12
1
12
1
M8 x 20
Serscrew
springwasher &
washer
1
13
13
14
14.1
15
16
17
17
16
18
18
9
9
19
38
19
38
20
21
20
21
22
23
23
24
38
25
25
26
27
28
29
28
29
30
30
31
32
31
32
33
34
34
35
12
21
9
37
39
21
37
9
36
35
12
43
41
38
38
38
40
10
40
10
43
10
38
40
10
10
41
40
40
10
11
42
10

FIG. NO
1
2
3
4
5
6
7
8
9
10
11
12
13
14
14.1
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
9
3/8 UNF x 1" Set Screw
Standard
Teasing Brush
304486
Height Adjuster Stud
303407
Teasing Brush Mounting Brackets
303423
Cutter Sprocket
165340
FIG 3
M10 x 40 Cup Sq, Flat washer, Nylock nut
Standard
M10 Nut
Standard
Cutter Adj Screw
301719
Cutter Adj Screw Purchase Block
301727
Nut 1/2" UNF
Standard
RH Bearing Lock Nut Assy
161277
M10 x 30 Cup Square Bolt
Standard
Hanger Cap Bolt Spacer
301680
Bearing Housing Pivot Bolt
163440
M12 Star Washer
Standard
RH Cutter Bearing Housing Assy
301647
LH Cutter Bearing Housing Assy
301698
Bolt 3" x 5/16" W
1185887
Cutting Cylinder Washer
163432
Teasing Rake Bar
304488
Cutter Bearing
1123423
M10 Flat Washer
Standard
M10 Nut
Standard
Blade Cutter Assy 30" x 16 Blade
305074
M5 Spring Washer and Nut
Standard
Pin Mills 1/2 x 3/16 Type 4
2211047
Scraper Bolt Assy
303503
Scraper Strip
305920.3
Front Roller Scraper Block
305802
M5 x 12 Set Screw
Standard
M10 Flat Washer
Standard
M10 Spring Washer
Standard
New Front Roller Scraper Bar
305920
Nut 5/16 UNF
2321180
Nut 3/8 UNF
2321208
Top Spacer Bar
305630
Front Roller Adj. Rod Assy
301559
Adj Rod Retainer
2501036
Adj Rod Purchase Block
301583
Front roller Bearing
1122327
LH Front Roller Bracket
301030
RH Front Roller Bracket
301049
COMPONENT
PART NUMBER
Front Roller Assy
301516
Bearing Seal Washer
301057

10
FIG 4
1
2
2
1
4
4
4
4
7
7
13
12
11
6
6
6
6
3
3
3
20
29
9
9
9
30
30
29
5
13
12
10
21
8
15
14
17
18
19
18
19
16
17
34
31
32
26
19
23
14
35
26
24
25
36
28

FI
FIG 4
DESCRIPTION
1 Drum Outer Assy. 303992
2 Inner Drum Assy. 304012
3 Bush 1771189
4 Ratchet Box Assy. 301188
5 Drum Pawls 333024
6 Ratchet Box Screw 5/8 x 1/4 UNC Standard
7 Drum Shaft Sleeve 301808
8 Drum Shaft 301217
9 Key No.9 Woodruff 3802267
10 Drum Shaft Collar LH 301840
11 Drum Shaft Collar RH 301858
12 Grub Screw M10 x 20 Standard
13 Locknut M10 Standard
14 Drum Shaft Bearing 1122422
15 LH Drum Bearing Circlip 47mm 1502474
16 LH Drum Bearing Housing 301815
17 S/Screw 3/4 x 5/16 UNF Standard
18 M8 Spring Washer Standard
19 Nut 5/16 UNF Standard
20 Drum Sprocket Assy. 301866
21 Drum Shaft Lock Nut 171660
22 RH Bearing Seal Washer 301831
23 RH Drum Bearing Housing 301823
24 Drum Adjusting Screw Assy. 304434
25 Drum Adjuster Screw Purchase Block 301583
26 Nut 3/8 UNF Standard
27 Washer 5/16 Bright Standard
28 Adjuster Screw Pivot Sleeve 304469
29 Pawl Retainer 301196
30 CPCH Screw 3/4 x 5/16 W 3162306
31 Chain Adjuster 161453
32 Chain Adjuster Bolt Assy. 161461
33 Washer M10 Standard
34 Clutch to Drum Chain 2986543
35 Drum Adjuster Screw Pivot Bolt 304477
36 Seal Washer 301831
11
ILLUS.
NO.
PART
NO.

12
15
10
12
11
6
14
7
3
2
1
3
17
46
18
17
24
16
36
23
41
4
26
40
5
29
30
25
39
16
8
31
38
31
8
60
22
23
21
40
24
32
15
35
44
43
57
34
59
33
37
9
20
45
53
19
50
49
54
47
48
59
55
57
52
58
51
FIGURE 5

1 Clutch Housing Side 302068
2 Clutch Housing Body Assy 302092
3 M5 x 10 Set Screw Standard
4 Clutch Ramp Moveable 305509
5 M6 x 80 Hex Bolt Standard
6 Washer M6 Standard
7 Nut M6 Standard
8 M8 Spring Washer Standard
9 5/16 UNF Nut Standard
10 Clutch Ramp Fixed 302340
11 Clutch Ramp Stop 302359
12 M5 x 12 Cap Screw Standard
13 Washer 1/4 S/Proof 3711163
14 Clutch Ramp Spring 302375
15 Seat Block Clamp 302084
16 Housing Side Seat Block 302076
17 Washer M8 Standard
18 Nut M8 Standard
19 Drum Clutch Gear 302252
20 Bush (Drum Clutch Gear) 172216
21 Drum Clutch Shaft 302279
22 Clutch Shaft Thrust Race 3531020
23 Washer 1/2 Bright Standard
24 Nut 1/2 UNF Standard
25 Clutch Release Yoke 302308
26 Clutch Yoke Pillar 302316
27 Washer M10 Clutch Yoke Pillar (Not Shown) Standard
28 Nut 3/8 UNF - Clutch Yoke Pillar (Not Shown) Standard
29 Yoke Pin 302332
30 Pin Retainer 1/4 Circlip Standard
31 Trunnion Pivot Screw 302324
32 Clutch Plate Assy (Stud Side) 301286
33 Clutch Spring Stud 302236
34 Clutch Spring 302244
35 Clutch Release Trunnion 302287
36 Clutch Plate Lining 301276
37 1/4 BSW Nylock Nut Standard
38 M5 x 10 Panhead Screw Standard
39 Clutch Plate Assy (Sprocket Side) 301252
40 Clutch Plate Bush 3111271
41 Drum Clutch Sprocket 14T 302228
42 Clutch Shaft Washer 11/8 x 1/2 (Not Shown) 3659011
43 Clutch Release Thrust Race 3531026
44 Release Thrust Washer 302295
45 Circlip 1 1/2 EXT Standard
46 Felt Oil Strip 302210
47 Clutch Housing Cover Assy. 302130
48 Clutch Shaft Support Bracket 302121
49 Bolt 1" x 5/16 UNF Standard
50 Washer M8 Standard
51 Cover Holding Bracket Assy. 302172
52 Inter. Cluster Gear 302412
53 Bush 5/8 x 3/4 x 3/4 3111030
54 Circlip 5/8 EXT. Standard
55 Intermediate Gear Shaft 302420
56 Washer 5/8 Bright Standard
57 Washer M11 Standard
58 Housing Cover Screw 302164
59 Nut 7/16 UNF Standard
60 Clutch Housing Side Cover 302201
13
ILLUS.
NO.
PART
NO.
DESCRIPTION
FIG 5

14
3
29
2
27
1
10
8
5
4
9
6
7
40
40
39
38
32
33
39
15
17
12
33
21
28
19
20
30
32
23
13
11
26
25
24
14
18
16
22
FIGURE 6
31

ILLUS.
NO.
DESCRIPTION
PART
NO.
1 Counter Shaft 302875
2 Counter Shaft Bearing 1122422
3 Counter Shaft Bearing Housing LH 301815
4 Counter Shaft Bearing RH 301825
5 Internal Circlip 40mm Standard
6 M12 x 35 Set Screw Standard
7 M12 Nylock Nut Standard
8 5/16 UNF Screw x 1" Standard
9 5/16 UNF Nut Standard
10 M8 Spring Washer Standard
11 Counter Shaft Pulley 301954
12 8mm Woodruff Key Standard
13 Grubscrew M10 x 30 Standard
14 Taper Lock 301954
15 Nut 171660
16 Counter Shaft Sprocket 301962
17 Woodruf Key 3/16" Standard
18 Counter Shaft Gear 302383
19 1/4" Ball Bearing 3421166
20 Locating Spring 302391
21 Circlip EXT. 25mm Standard
22 "O" Ring 1501052
23 Chain Adjuster 161453
24 Chain Adjuster Bolt 161461
25 M10 Washer Standard
26 3/8 UNF Nut Standard
27 Chain - Counter Shaft to Cutting Cylinder 2986519
28 Counter Shaft Gear Key 302402
29 Clutch Housing Cover Side Cover 302201
30 Clutch Shaft Cover 302093
31 Pan Head Screw M5 x 10 Standard
32 Clutch Shaft Cover Clip Standard
33 M5 x 15 Screw Standard
38 M5 Nut Standard
39 M5 Washer Standard
40 M5 INT. Star Washer Standard
15
SECTION 6
REFER FIGURE 6

16
FIGURE 7
1
14
11
17
3
13
15
4
16
2
12
19
18
16
17
5
6
18
9
8
19
7
2
3
4
1