Western 1200 User manual

Operator’s Manual &
Parts Breakdown
1160 Olympic Drive
Corona, CA 92881
Phone: (951) 284-2000
Fax: (951) 284-2050

2
TABLE OF CONTENTS
1200 PLASTER MIXER SAFETY INSTRUCTIONS ������������������������������������������������������������3
TOWING SAFETY����������������������������������������������������������������������������������������������������������������4
OPERATING INSTRUCTIONS ��������������������������������������������������������������������������������������������5
CLUTCH ����������������������������������������������������������������������������������������������������������������������������������������������������5
MIXING������������������������������������������������������������������������������������������������������������������������������������������������������5
CLEAN UP�������������������������������������������������������������������������������������������������������������������������������������������������5
SEALS AND BEARINGS ���������������������������������������������������������������������������������������������������������������������������5
SEAL REPLACEMENT������������������������������������������������������������������������������������������������������������������������������6
GEARBOX ���������������������������������������������������������������������������������������������������������������������������7
CLUTCH ����������������������������������������������������������������������������������������������������������������������������������������������������7
CLUTCH ADJUSTMENT ���������������������������������������������������������������������������������������������������������������������������7
SHEAR BOLT ��������������������������������������������������������������������������������������������������������������������������������������������7
WHEEL BEARING�������������������������������������������������������������������������������������������������������������������������������������7
ENGINE�����������������������������������������������������������������������������������������������������������������������������������������������������7
PARTS BREAKDOWN ��������������������������������������������������������������������������������������������������������8
LIMITED WARRANTY �������������������������������������������������������������������������������������������������������12
TABLE OF CONTENTS

3
1200 PLASTER MIXER SAFETY INSTRUCTIONS
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The following safety instructions are for the benet of the contractor and the equipment operators� These
instructions should be followed at all times and the contractor should make sure the operators are fully trained
and have read these safety instructions�
Do not operate or service this equipment before reading the operating and maintenance instruction1�
manual or serious injury may result�
Stop the engine if leaving the machine unattended�2�
If the machine jams, disengage the clutch immediately� Turn engine o before attempting to dislodge3�
the jammed object�
Keep the equipment properly maintained� Poorly maintained equipment can be unsafe�4�
Stop engine and allow engine to cool down before attempting to service the engine or add fuel�5�
Keep hands and objects out of the mixing barrel when the engine is running whether or not it is in6�
gear�
Do not operate this equipment unless all guards and safety grates are attached and in place�7�
Never attempt any repairs while the engine is running�8�
Chock wheels if parked on a slope�9�
1200 PLASTER MIXER SAFETY INSTRUCTIONS

4
TOWING SAFETY
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Check with state and local laws that apply to the roads you will be towing on before towing this mixer and
always check the following:
Verify the hitch is securely attached to the towing vehicle�1�
Safety chain is securely hooked�2�
Drum is empty, in an upright position with the dump latch secured�3�
Lug nuts and axle nuts are tight�4�
Tires are in good condition and properly inated to 32 P� S� I�5�
Always thoroughly clean the machine prior to towing� Loose material could shake loose and damage6�
other vehicles or harm pedestrians�
TOWING SAFETY

5
OPERATING INSTRUCTIONS
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The model 1200 Mixer is heavy-duty and capable of mixing materials to an ideal consistency in only minutes�
It is suitable for all plaster, mortar, cementitious slurries, reproong materials, accoustic, roong coatings,
gypsum mixes with sand, clay, vermiculite, perlite, magnesite, low and high viscosity liquids�
CLUTCH
Always verify the clutch is disengaged before starting the engine� Allow the engine to warm up before
engaging the clutch�
MIXING
Add all except 1-1/2 gallons of water� Engage the clutch to start rotating the paddles� Add all of the cement and
let it mix into a soft, lump free, slurry� Gradually add the aggregate at about 1 cubic foot every 15 seconds� Add
the remaining water desired to get the consistency desired�
CLEAN UP
Keep the mixer as clean as possible as a clean and well maintained machine will give maximum years of
service�
SEALS AND BEARINGS
Lubricate the bearings and shaft seals daily� Fill with waterproof grease until the grease starts to squeeze
to the seals and retaining rings� This is often audible as pockets of air pop through the seals and retaining
rings� Do not try to force grease through the seals as doing so can cause the seals to fail� Improper
maintenance will shorten the life of the seals, bearings, and paddle shaft�
OPERATING INSTRUCTIONS

6
OPERATING INSTRUCTIONS
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SEAL REPLACEMENT
It is recommended to replace the bearings anytime these seals are replaced, as they are relatively inexpensive
versus the cost of downtime and labor� The paddle shaft should be thoroughly inspected for grooves� Paddle
shafts with a groove 1/8” or deeper should be replaced�
Disconnect the gearbox from the shaft coupler and remove the engine and gearbox from the engine
compartment� Remove the bolts holding the drum’s pillow block bearings to the frame and remove the
drum from the frame� Remove the paddles from the paddle shaft if the shaft is to be replaced� Remove the
pillow black bearings from the shaft� Removing the ange mount bearing exposes the seal and grease ring
assemblies� For seal installation, put a small amount of grease on the rubber seals so they will slip on the
shaft� The seals are purposely undersized to allow wear� Assemble as indicated on the illustration� Completely
ll the seal cavity with waterproof grease�
1
23
3
3
4
5
6
7
8
A
GREASE FITTING
PADDLE SHAFT
PADDLE SHAFT SEAL
PADDLE SEAL SPACER
GREASE RING
FLANGE BEARING GOLD
FLANGE BEARING STD
GREASE FITTING
NUT LOCK
HEX BOLT
1
2
3
3A
4
5
5A
6
7
8
1200-350-040
1200-100-100
1200-100-060
1200-100-080
1200-100-070
1200-100-050
1200-100-051
1200-200-230
1200-030-150
1200-100-020
Ref
DESCRIPTION PART #

7
GEARBOX
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The gearbox has two compartments separate from each other� The compartment closest to the engine is for
the clutch assembly, and the compartment closest to the paddle shaft is for the speed reducing gears�
The clutch compartment uses a 30W engine oil every other month and change at least once per year� The gear
reduction compartment uses a 90W gear lubricant� Check the level every other month and rell as necessary�
CLUTCH
The clutch is set from the factory to allow for some initial wear� Refer to the illustration and the following
instructions to maintain the clutch for proper operation:
CLUTCH ADJUSTMENT
Disable engine from being able to start�1�
Disengage clutch�2�
Remove inspection plate on the gearbox�3�
Bump engine over until adjusting clip can be accessed�4�
Loosen the lock screw and move the clip away form the5�
notches on the adjusting ring�
Rotate adjusting ring one notch at a time until desired engaging6�
pressure is achieved� Proper pressure is indicated when it requires
a smooth and rm force that will cause it to click into place� It should
not be set too tight as some of the clutch parts can break� If you have
to lean into it using your body weight to engage the clutch, it is too
tight� To tighten the clutch, rotate the adjusting ring counter- clockwise
or downward�
Replace the adjusting clip and lock down by tightening the screw�7�
Replace the inspection plate and seal with silicon or a new gasket�8�
Rell clutch housing with oil�9�
SHEAR BOLT
The 1200 mixer has a shear pin at the output of the gearbox were it connects to the paddle shaft�
If a serious jam occurs, the shear pin may break� It is a good idea to keep an extra shear pin on hand�
WHEEL BEARING
Wheel bearings should be given the same care as if they were on a boat trailer or on a car receiver�
Repack the adjust wheel bearing every six months�
ENGINE
Check oil daily and add oil as prescribed in the engine owner’s manual�
GEARBOX

8
PARTS BREAKDOWN
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PARTS BREAKDOWN
20
21
22
23
1200-200-130
1200-200-240
1200-200-230
501-0PC-321
1200-200-210
1200-200-211
00336206ZNR
1200-200-211
1200-200-200
1200-200-190
00336208ZZC
1200-200-080
1200-200-090
1200-150-130
1200-150-110
1020-00-0006
1200-200-060
1200-200-120
1200-200-110
1200-150-100
1200-200-020
1200-150-060
1200-150-020
1200-200-050
1200-200-100
5010LC100535
5010LC100543
5010LC100519
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
½ x PLUG
INSPECTION GASKET
INSPECTION PLATE
⁄ STUD
INPUT SHAFT
INPUT RING
BEARING
INPUT RING
INPUT SEAL
HOUSING
BEARING
SEAL OUTPUT
OUTPUT SHAFT
SHAFT COUPLER
SHAFT PIN
NUT LOCK ⁄
OUTPUT RING
GEAR INTERNAL
KEY WAY
SHIFTER HANDLE
SHIFT SHAFT
CLUTCH FORK
PIN GROVED
MAIN GEAR
GEAR INTERMEDIATE
DRIVE MEMBER ASSY.
PRESSURE PLATE ASSY.
RELEASE BEARING
Part Number
Ref Description
12
7
19
17
24
11
3
4
567810
18
25
12 13
14
15 16
77
9
26 27 28

9
PARTS BREAKDOWN
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1
1
2
3
4
5
6
7
8
9
12
13
14
14
15
16
17
18
HOOD SPITFIRE
FALCON HOOD
HEX BOLT
WASHER FLAT
NUT LOCK
TIRE/ WHEEL ASSY
NUT LUG
NUT SPINDLE SLOTTED
COTTER PIN
WASHER THRUST
BEARING WHEEL INNER
SEAL GREASE
AXLE
AXLE ASSY ITEM 12-20
LEAF SPRING
UBOLT
WHEEL HUB
BEARING WHEEL OUTER
1200-050-020
1200-050-021
1010-000-039
1030-000-012
1020-000-004
1200-050-070
1020-000-029
1200-030-200
1200-010-190
1200-050-120
1200-030-180
1200-050-160
1200-050-230
1200-050-231
1200-050-260
1200-050-240
1200-050-140
1200-030-180
Ref Description Part Number Ref Description Part Number
19
20
21
22
23
24
25
26
27
28
28
29
29
30
31
32
1
1
11
1
1
1
1
1
2
2
2
29
29
32
2
2
2
22
2
2
2
3
3
3
4
4
2
5
4
5
6
5
6
7
77
6
0
8
30
8
8
9
9
AXLE SPRING MOUNT
WASHER LOCK
WASHER FLAT
NUT LOCK FINE
HEX BOLT
WASHER FLAT
NUT LOCK
HEX BOLT
NUT LOCK
TOW BAR 1” PIN
TOW BAR 2” BALL
BEARING PB GOLD
BEARING PB STD
ENGINE MOUNT
DUST CAP
HEX BOLT
1200-050-250
1030-000-003
1030-000-003
1200-030-280
1010-000-058
1030-000-015
1020-000-026
1010-000-016
1020-000-001
1200-030-010
1200-030-011
1200-100-110
1200-100-111
1200-050-100
003-000-26
1010-000-014
1
31

10
PARTS BREAKDOWN
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21
22
1
8
19
20
20
2928
11
1
1
2
2
13
13
3
1
4
161
4
4
15
56
7
8
9
38
1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
17A
17B
18
18A
19
20
20
21
NUT
WASHER LOCK
HEX BOLT
SET SCREW
CLUTCH
CLUTCH FORK
ROLL PIN
GEARBOX
SHIFTER HANDLE
HEX BOLT
SHEAR PIN
HEX BOLT
FLAT WASHER
NUT LOCK
SHAFT COUPLER
HEX BOLT
SAFETY GRATE 2/3 SPOUT
SAFETY GRATE GUN SPOUT
MATERIAL SCREEN GUN
MIXING DRUM 2/3 SPOUT
MIXING DRUM GUN SPOUT
SEAL HOUSING WELD-ON
FLANGE BEARING GOLD
FLANGE BEARING STD
PADDLE SHAFT
PADDLE SHAFT SEAL
SEAL PADDLE SHAFT
NUT LOCK
FLAT WASHER
CLEVIS PIN
HEX BOLT
BUCKET STOP
PADDLE SEAL SPACER
GREASE RING
GREASE FITTING
RUBBER BEARING COVER
BLADE KIT STEEL W/ H.W.
RUBBER BLADE KIT
PADDLE W/WIPER ENG
PADDLE LT CAST DESIGN
PADDLE RT CAST DESIGN
PADDLE W/WIPER TOW
PADDLE W/SCRAPER ENG
PADDLE FAB LT
PADDLE FAB RT
PADDLE W/SCRAPER TOW
SHIFT SHAFT 110D
NUT
FLAT WASHER
HEX BOLT
1020-000-004
1030-000-020
1010-000-039
1010-000-045
1200-150-050
1200-150-060
1200-150-020
1200-150-090
1200-150-100
1200-150-150
1200-150-110
1010-000-093
1030-000-015
1020-000-006
1200-150-130
1010-000-053
1200-050-013
1200-050-014
1200-050-015
1200-050-060
1200-050-061
1200-100-065
1200-100-050
1200-100-051
1200-100-100
1200-100-060
1200-100-080
1020-000-001
1030-000-007
002-000-04
1010-000-010
1200-050-360
1200-100-080
1200-100-070
359-800-003
1200-050-410
1200-100-230
1200-100-231
1200-100-134
1200-100-131
1200-100-132
1200-100-133
1200-100-150
1200-100-170
1200-100-180
1200-100-200
1200-200-020
1010-000-003
1030-000-008
1020-000-002
Ref
22
22A
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
34A
35A
36A
37A
38
39
40
41
Ref
17
23 23
25
27
24
23
30
30
39
40
31
26
33
35 36 36
34 35 37
32
41

11
PARTS BREAKDOWN
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REF DESCRIPTION PART #
1 GEAR PUMP 5301SNP208DCI06
2 PUMP/MOTOR MOUNT 5301E575502A
3 COUPLING 5301L095-37242
4 COUPLING SPIDER 5301L095-11070
5 COUPLING 5301L095-11091
6 FILTER ELEMENT 5301P562198
7 FILTER HOUSING 5301P563278
8 HYD VALVE PM 53011025OL34HS
9 HYD MOTOR 5301151H1046
10 CHAIN COUPLING 0040501811/4
11 CHAIN COUPLING 0040501815/8
12 CHAIN FOR COUPLER 00405018
13 TANK CAP 5301703-1314
HYDRAULIC (OPTIONAL) 1200 MIXER DIAGRAM
12
11
1
2
3
4
5
6 7
8
9
10
13
to engine
shaft
Mixer frame/tank

12
LIMITED WARRANTY
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All warranty claims must accompany a proof of purchase and must be authorized by Western Equipment
Manufacturing, Inc� before started� To obtain approval from Western Equipment Manufacturing, Inc� call
(951) 284 -2000 or write to 1160 Olympic Drive, Corona, CA 92881� Western Equipment Manufacturing, Inc�
warrants the product against defects in material and workmanship under normal use and service for 180
days from the date of purchase provided the product has not been subject to misuse, abuse negligence,
or accident� Warranty for engines motors, compressors, transmissions, accessories, and related items
are covered under the manufacturer’s warranty policy & procedures� Western Equipment Manufacturing,
Inc� accepts no responsibility where a manufacturer’s warranty applies as in the case of engine motors,
compressors, transmissions, accessories and related items� Western Equipment Manufacturing, Inc� will
replace defective parts with its own manufactured or suitable replacement part at the discretion of Western
Equipment Manufacturing, Inc� Warranty excludes those parts that are subject to normal operational wear,
tear, and breakage� Warranty does not obligate Western Equipment Manufacturing, Inc� to bear the cost of
labor or freight for replacement of defective parts� Western Equipment Manufacturing, Inc� reserves the right
to direct that the warranty service be performed at a facility authorized by Western Equipment Manufacturing,
Inc� Western Equipment Manufacturing, Inc� assumes no liability for damages incurred such as down time, lost
time, loss of materials, employee expenses, loss of prots, deadline penalties, or any other related damages.
Western Equipment Manufacturing, Inc� reserves the right to use replacement parts consistent with current
specications.
Please mail or phone in the following information about your equipment as soon as possible� Should you need
to le for a warranty claim, the following information will help us expedite the claim process.
LIMITED WARRANTY
Model Number:
Serial Number:
Date of
Manufacture:
Customer:
Mailing Address:
City:
Phone:
Purchased at: Date of Purchase:
Main Equipment Engine Compressor Gearbox Accessory
State:
Fax:
City: State:
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