BIRO AFMG-48-II Service manual

+IMPORTANT NOTICE +
This Manual contains important
safety instructions which must
be strictly followed when using
this equipment. AFMG-48
138-9-05-12
AFMG-48
138-4-08-13

OPERATING AND MAINTENANCE INSTRUCTIONS
3. FOR NORD HELICAL – WORM GEAR AND MOTOR REDUCER
ELECTRICAL CONNECTIONS
Check the motor nameplate to verify the phase, hertz and
voltage agrees with the available power supply. Connection
should conform to local codes. A connection diagram for
the motor is located inside the conduit box and on the
motor nameplate. The motor starter has overload
protector.
START-UP
All units are lubricated before shipment. The lubricant level should be
checked with the unit mounted in its correct operating position. Lubricant
should be added or removed to bring it to the correct level.
MAINTENANCE
A. MOTOR
During maintenance, inspect the fan guard and remove any accumulated debris from under or around the
gear reducer. Motor bearings are greased and sealed for life. Motor requires no periodic maintenance.
B. GEAR REDUCER
All units are filled from factory with ISO VG680as. This is a Polyglycol (PG) type synthetic lubricant. Units
should be checked periodically for increase noise, surface temperature, vibration, shaft movement, and
amperage draw. Gear reducer should have the lubricant changed every 20,000 hours or four years,
whichever occurs first. For adverse operating conditions the interval should be shorter. DO NOT MIX
SYNTHETIC & MINERAL BASE OILS. After the unit is drained of the used lubricant, it should be filled
with approximately 1.48 Qts. of a compatible lubricant to the above specification. Once the unit is filled,
the lubricant level should be verified at the Oil Level Plug.
Please note the chart below for oil compatibility:
The listing below offers suggestions on the
manufacturers of recommended lubricants. Use
synthetic oil (Polyglycol-Base) between 14 – 175°
with an ISO Viscosity Class of ISO VG 680.
Aral Degol GS 680 Klober Klubersynth GH 6-680
BP Enersyn SG-XP 680 Mobile Glycgoyle HE 680
Texaco Pinnacle 680 Tribol 800/680
9
Item No. Description
1773-1 Lock Ring ½²
35220 Motor cord SO 14/4 ´41²
53511 Cord connector 14/4 AL.
53516 Mixer paddle drive pin
53769-35 Mixer drive shaft key
53769-47 Mixer shaft washer retainer
53953 Mixer drive shaft seal
53955-N Mixer drive shaft
57211 Mounting plate
57212 Motor & reducer only – Nord
1¾HP, 208/460V-50/60-3Ph.
57212-2 Motor & reducer only – Nord
1¾HP, 550-575V-50/60-3Ph
57212K Conversion kit & plate – Nord
1¾HP, 200-230V-50/60-3Ph
57212K-1 Conversion kit & plate – Nord
1¾HP, 380-415V-50/60-3Ph
57212K-2 Conversion kit & plate – Nord
1¾HP, 440-460V-50/60-3Ph
57212K-3 Conversion kit & plate – Nord
1¾HP, 550-575V-50/60-3Ph
Item No. Description
57212K-208 Motor & reducer & shaft
replacement w/o plate – Nord
57212K-380 Motor & reducer & shaft
replacement w/o plate – Nord
57212K-440 Motor & reducer & shaft
replacement w/o plate – Nord
57212K-575 Motor & reducer & shaft
replacment w/o plate – Nord
C776 Terminal ring #10
HHS125S Hex head screw, ½-13 ´1SS
Item No. Description
HHS127S Hex head screw, ½-13 ´
1½SS
HHSM059S Hex head screw,
M8 ´1.25 ´20mm
HN42S Hex nut, ½-13 SS
LW15S Lock washer, 516 SS
LW30S Lock washer, ½ SS
SSS10Z Set screw, ¼-20 ´¼SS
NORD GEAR CORP.
800 Nord Drive
P.O. Box 376
Waunakee, WI 53597-0367

4. FOR DORRIS MIXER TRANSMISSION
DORRIS MIXER TRANSMISSION: Oil in the mixer
transmission should be changed after the first four (4)
weeks of operation. This is to remove the "run-in" oil
and also any small metal shavings that may have been
generated during the initial mating of the gears. After
the first oil change, subsequent changes should be
performed every six (6) months. After draining the oil,
refill the unit to the "level" plug (1 qt.) at the center of
the transmission with a petroleum based rust and
oxidation (R&O) inhibited gear oil. Viscosity Range for
15-75 degrees F (-9 – 24 degrees C) is AGMA Lube No.
3 or ISO Grade 100.
TO CHANGE OIL:
a. Unplug mixer/grinder from power source and
perform lockout/tagout procedures.
b. Remove rear drive cover.
c. Remove breather plug from top of transmission and
oil level plug from side of transmission
d. With a container in place to catch old oil, remove the
magnetic drain plug from the bottom of the
transmission.
e. When all oil has drained, clean the drain plug and
replace into the transmission.
f. Refill transmission with approx. one (1) quart of the
recommended gear oils or equivalent. Or until oil
appears at bottom of oil level sight hole.
g. Replace breather and oil level plugs.
h. Carefully turn mixer transmission pulley by hand to
lubricate internal gears.
i. Reinstall rear drive cover.
D. MIXER DRIVE BELT TENSION
1. Unplug mixer/grinder from power source and perform lockout/tagout procedures.
2. Remove rear drive cover.
3. Loosen the four bolts holding the 1HP motor to its mounting plate.
4. Slide 1HP motor away from mixer transmission.
5. When approximately 12" total belt flex has been attained, retighten motor bolts.
6. Reinstall rear drive cover.
E. MAIN DRIVE CHAIN AND SPROCKET LUBRICATION:
The main drive chain has been pre-lubricated at the factory to protect it against dirt and moisture. Chain life
will vary appreciably depending upon its lubrication. The better the lubrication, the longer the chain life.
Lubrication effectiveness will vary with the amount of lubricant and frequency of application. Ideally, a
lubricant film should always be present between the working parts. Manually lubricate the chain as often as
is needed (possibly once a week). NEVER exceed three months without lubricating.
Lubricating just the outside of the chain does little good. Apply lubrication on the inside of the chain span so
that it will work through the moving parts and joints by centrifugal force as the chain rotates and reach the
area where one surface “scrubs” another.
10

MAIN DRIVE CHAIN AND SPROCKETS LUBRICATION (continued):
Recommended types of chain lubricant are those with Molybdenum Disulphide or Graphite added. Also
bonded lubricants such as Dow Corning Molykote 321R or equivalent are excellent for open chains. The
lubricant should be of a viscosity whereby it will “flow” somewhat and penetrate the internal working surfaces.
Thick stiff greases are of little value because they cannot work into moving parts of the chain.
a. Unplug mixer/grinder from power source and perform lockout/tagout procedures.
b. Remove rear drive cover.
c. Spray or brush lubricant on inside of chain, slowly and carefully turning large sprocket by hand.
d. Reinstall rear drive cover.
F. MAIN DRIVE CHAIN TENSION (See Diagram Below)
1. Unplug mixer/grinder from power source and perform lockout/tagout procedures.
2. Remove rear drive cover.
3. Remove right and left side skirts.
4. Loosen the four bolts that hold the motor to the frame of the machine.
5. Loosen the lock nuts on the motor adjusting stud.
6. To Loosen Chain Tension. Turn motor adjusting studs counterclockwise. Grasp motor and pull toward
adjusting stud. Be sure to turn both adjusting studs the same amount and evenly. Total chain flex should be
18"to38". Be sure to keep motor shaft parallel with auger drive shaft.
To Tighten Chain Tension. Turn motor adjusting studs clockwise. Be sure to turn both adjusting studs the
same amount and evenly. Total chain flex should be 18"to38". Do not overtighten chain as this will put
excessive and damaging pressure on the motor bearings. Be sure to keep motor shaft parallel with auger
drive shaft.
7. Retighten motor mounting bolts.
8. Retighten motor adjusting stud lock nuts.
9. Reinstall the right and left side skirts.
10. Reinstall the rear drive cover.
G. CHAIN REPLACEMENT
1. Part No. H384-CL Service Replacement Chain is provided with a
"Connecting Link" (Part No. H384-LINK) so that is can be separated to
facilitate installation over the sprockets
Upon assembly, be sure the connecting link is installed so the spring
clip is orientated with its opening facing "opposite" the direction of the
chain travel (See Diagram). â
11
AFTER INSTALLATION
THE CHAIN SHOULD BE
TENSIONED TO
APPROXIMATELY
18to 38FLEX

12

— NOTES —
13

AFMG-48 SIDE VIEW PARTS DIAGRAM
14

Fig. Item No. Description
1 57154 Product mixer safety cover, tri directional,
#63592 on
1A 53547 Lid with chute opening
1B 53543 Conveyor chute
2 56072 Safety cover latch
3 56073 Safety cover latch mounting bracket, L.H.
4 56074 Safety cover latch mounting bracket, R.H.
5 AN20S Acorn nut, 38-16 (2 req.)
6 RHS24S Round head screw, 14-20 ´12(2 req.)
HNNL15S Hex nut, nylok, 14-20 (2 req.)
7 RHS31S Round head screw, 14-20 ´1
HNNL15S Hex nut, nylok, 14-20
8A 53456 Mixer paddle assembly, 1st grind, optional
8B 53918 Mixer paddle assembly, 2nd grind,
standard
9 53953 Mixer drive shaft seal
10 53516 Mixer paddle drive pin
11 SSS10Z Drive pin set screw
12 53594 Bearing for 53520 assembly
13 53517-1 Thrust bearing
14 53852 Lock arm assembly w/brgs.
15 53568 Mixer paddle lock set screw
16 57047 Wireway cover, #63401 on
17 1116 Acorn nut, 10-32 (3 req.)
18 SSS45S Meatguard mounting stud
19 WN20S Wing nut
20 52392 Meat guard splash shield
21 HK48 Knife drive pin
22 HP48 Bowl plate pin (3 req.)
23 HR42/48 Bowl ring
24 52106-CTN Bowl w/plate pins
25 54278-CTN Auger assembly
25B 54278B Square drive auger adapter
25C 54278C Auger shear pin
25D FHS33S Shear pin flat head screw, 14-20 ´½
26 53413 Bowl mounting stud – short (1 req.)
HNF42S Hex flange nut, 12-13, (2 req.)
26A 53413-2 Bowl mounting stud – long (2 req.)
26B HNF42S Flange hex nut ½-13 bowl mounting nut
(3 req.)
27 57159K Auger drive shaft seal kit
27A 57160 Seal retainer, SS
27B 57159 Auger drive shaft seal, double lip
27C FHS26S Flat head screw 10-32 ´34,SS
28 53475-200 Motor, 7½HP, 200/400-60-3
53475 Motor, 712HP, 208/460-60-3
53475-50 Motor, 7½HP, 208/380-50-3
53941 Motor, 712HP, 575-60-3
53475-1 Baldor 7½HP, bearing both ends –
206KDD
53475-2 Doerr 7½HP, bearing, opp. shaft –
206KDD
53475-3 Doerr 7½HP, bearing, shaft end –
207KDD
57025-200 Motor, 10HP, 200/400-60-3
57025 Motor, 10HP, 208/460-50/60-3
57025-5 Motor, 10HP, 575-60-3
57092 Motor, 10HP, 220/380-50-3
29 53886 Journal box assembly
30 H384-CL Roller chain
31 54310 Adjusting stud
32 55092 Rear drive cover w/handles
55092-COSK Rear drive cover COS kit
55092-COS Rear drive cover w/handles & magnet
14688 4-point knob, AL
14688-COS Locking knob, AL
57219 Screw – COS rear drive cover
FW05S Flat washer ¼, SS
FW16S Flat washer 516,SS
HHS025S Hex head screw ¼-20 ´½, SS
HHS049S Hex head screw 516-18 ´½, SS
HHS050S Hex head screw 516-18 ´58,SS
Fig. Item No. Description
HHS055S Hex head screw 516-18 ´¾, SS
HN07S Hex nut 10-24, SS
HN15S Hex nut ¼-20, SS
HN20S Hex nut 516-18, SS
LW10S Lock washer ¼, SS
LWE10P Lock washer #10 ext tooth, SS
33 53478 Starter w/110V coil, Furnas size 1,
14DP32AF81, 712HP
55046 Starter w/24V coil, Furnas size 1,
14DP32AJ71, 7½HP
75DF14 Contact kit, Furnas 1 pole only (size 1)
7½HP
57027 Starter w/110V coil, Furnas size 134,
14EP32AF81, 10HP
57027CE Starter w/24V coil, Furnas size 1¾,
14EP32AJ71, 10HP
75EF14 Contact kit, Furnas 1 pole only (size 1¾)
10HP
33A 34478 Holding coil – 120V/240V
55047 Holding coil – 24V
34 53851 Fuse, FNM-1 AMP, 250V timedelay
35 53914 Transformer, 230/460 to 115V
53731 Transformer, 575 to 115V
PC141-1 Transformer replacement,
200/208/220/240/277/380 to 24V
36 See electrical diagram, page 4
37 53477 Starter w/110V coil, Furnas size 00,
14BP32AF81, 1¾HP
55045 Starter w/24V coil, Furnas size 00,
14BG32AJ71, 1HP
75BF14 Contact kit, Furnas 1 pole only (size 00)
1HP
37A 34478 Holding coil – 120V/240V
55047 Holding coil – 24V
38 53633 Starter box cover
39 53860 Starter box
40 52181-1 Magnetic switch bracket for magnet
41 52181-1 Magnet w/mounting brkt. (110 volt)
PC166 Magnetic safety switch (24 volt) old style
units only (not CE)
42 42MC-Y73 Green start button
43 H442-1 Magni switch, 3 amp
53872 Safety switch mounting bracket
44 42MC-Y74 Red stop button
45 50655-1 Switch guard
H462-1 Switch guard ferrule
HN20S Hex nut 516-18 SS
LW15S Lock washer 516 SS
46 54320K Toggle switch,hand/foot, w/boot
47 54321 Toggle switch waterproof half boot
48 53869CEK Legend plate, w/int’l. symbols, int'l kit
49 53870 Legend plate gasket
50 52655 Female receptacle, 5 pole, for footswitch
51 52662 Protective cap assembly
52 53872 Safety switch bracket
53 35376 End anchor
54 35241 Mounting channel
55 35375 End barrier
56 35374 Terminal block
57 53783 Decal, rotation
58 57156 Front splash shield
HHS025S Hex head screw ¼-20 ´½, SS
HN15S Hex nut ¼-20, SS
LW10S Lock washer ¼, SS
NOT SHOWN
57073 Power cord, 10’, 8-4
54268 Power cord, 10’, 10-4
2563 Legend plate hex screw
10-32 ´12,SS
53965 Optional leg ext. kit with brace
BIRO MODEL AFMG-48-II MIXER GRINDER PARTS LIST
15

16
Fig. Item No. Description
1 56221 Safety cover torsion spring, R.H.,
#63401 on
56222 Safety cover torsion spring, LH.,
#63401 on
2 57050 Safety cover hinge rod, #63401 on
2A 57153 Tri directional hinge rod, for front
opening, #63440 on
2B 56045 Hinge rod spacer (2 req'd)
2C AN20S Acorn nut 38-16, SS (2 req'd)
3 53755 Motor, 1HP, 208/460-60-3
53755-50 Motor, 1½HP, 220/380/50-3
53942 Motor, 1HP, 575-60-3
57210 Motor, 1½HP, 200-60-3
4 53771 Transmission & motor mounting
bracket, #62001 on
5 53769 Transmission (Dorris), #62001 on
6 53955 Mixer drive shaft
7 53773 Transmission mounting angle,
#62001 on
8 54303 Outer disc, double rod, #62001 on
9 14688 Lock knob, (2 req.)
10 57133 Side entrance seal, double rod, 35°
inlet, #63592 on
10A 54302 Side entrance seal, double rod, 90°
inlet, #62001 to #63591
11 53891 Auger drive shaft key
12 53894 Auger drive shaft lockwasher
13 53715 Ring wrench hanger
HN15S13A Hex nut ¼-20, SS
14 52357 Ring wrench (order H340)
15 55093 Right side skirt, 35° inlet, #63592 on
15A 55094 Right side skirt – no hole
15B 55095 Right side skirt, 90° inlet, #52001 to
#52344
16 53580 Sprocket, 22 tooth (order H382-1)
H382 Sprocket – 19 tooth (replacement
only)
17 PC175-1 Swivel caster w/total lock (4 req.) –
new style
53952 Swivel caster w/lock (4 req.) – old
style
18 53944-1 Standard leg, 912" adjusting – new
caster pad style
53944-5K Foot leg pad bumper kit (4 ea.)
53944 Standard leg, 912" adjusting – old
caster pad style
19 55096 Left side skirt – 35° inlet
19A 55097 Left side skirt – no hole
19B 55098 Left side skirt, 90° inlet
20 53727 Main sprocket #62001 on
21 53895 Auger drive shaft locknut #62001 on
22 16251-90X78AL
Pulley, (driven) 9 ´78I.D.
23 15063 V-belt 5L350
24 53469 Pulley, (driving), 3.15 ´78I.D.
25 57201K Motor bracket support bar kit
26 C617 Motor shaft key ¼ ´¼´2²

OPTIONAL STAINLESS STEEL BOWLS, AUGERS & RINGS
17
Fig. Item No. Description
1 53446 Lid assembly to #63400
2 HN30S Hex nut, 38-16, SS (2 ea.)
3 51563 Lid hinge pin to #63400 (2 ea.)
4 53530 Lid lock arm to #63400
5 53533 Lid lock spacers to #63400 (2 ea.)
6 AN15S Acorn nut, 14-20, SS (2 ea.)
7 HHS035S Hex head screw, 14-20 ´58,SS
(2 ea.)
Fig. Item No. Description
8 FW05S Flat washer, 14, SS (2 ea.)
9 56072 Safety cover latch
10 56073 Latch mounting bracket, LH
11 56074 Latch mounting bracket, RH
12 RHS24S Round head screw, 14-20 ´12,SS
(2 ea.)
13 HNNL15S Hex nut, 14-20 nylok (3 ea.)
14 RHS31S Round head screw, 14-20 ´1, SS (1
ea.)
Fig. Item No. Description
55081 Lid lock retrofit kit
S/N 63401 to 63696
1 55059 Lid lock
2 55061 Lever arm assembly
3 2503 Nylon washer, .125 thick (2 ea.)
4 2504 Nylon washer, .060 thick (4 ea.)
5 AN17S Acorn nut, 516-18, SS (2 ea.)
6 FHS33S Flat head screw, 14-20 ´12,SS
(2 ea.)
7 HN15S Hex nut, 14-20, SS (2 ea.)
114mm UNGER
Item No. Description
FHS33S Shear pin fastener ¼-20 ´½SS
HHS012S Hex head screw, 10-32 ´12SS
HK114 Knife drive pin, 114mm Unger
HR42/48S-114 End ring, SS, 114mm Unger
LW05S Lock washer, #10, SS
52106S-114 Bowl, SS, 114mm Unger
54278-CTNS-114
Auger assembly, SS, 114mm
Unger
54278C Auger shear pin
56049SK-114 Key, 114mm Unger
ENTERPRISE
HR42/48S End ring, SS
52106S Bowl, SS
54278-CTNS Auger assembly, SS

DORRIS MIXER TRANSMISSION PARTS LIST
18
H369 Hex head screw 516-18 ´¾
LW30S Lockwasher, SS 12"
0850 Setscrew 14-20 ´14" long
1084 Hex head cap screw 12-13 ´114long
1103 Set screw 14-20 ´38" long
SSS30 Set screw 38-24 ´34" long
53516 Mixer drive pin
53769 Mixer paddle transmission
53769-01 Transmission housing
53769-03 Cover plate
53769-05 Low speed open cap
53769-06 High speed closed cap
53769-07 High speed open cap
53769-08 Low speed shaft
53769-09 Intermediate pinion gear
53769-10 High speed pinion gear
53769-11 Intermediate gear
53769-12 Low speed gear
53769-20 Intermediate closed cap
53769-31 High speed shaft key
53769-32 Intermediate gear key
53769-33 Low speed gear key
53769-35 Low speed shaft key
53769-36 Low speed Timken cup
53769-37 Low speed Timken cone
53769-38 High speed Timken cup (closed end)
53769-39 High speed Timken cone (closed end)
53769-40 High speed Timken cup (open end)
53769-41 High speed Timken cone (open end)
53769-42 Intermediate Timken cup
53769-43 Intermediate Timken cone
53769-44 Intermediate spacer ring
53769-45 Low speed spacer ring
53769-46 High speed spacer ring
53769-47 Puller shaft seal
53769-57 Intermediate shims
53769-58 High speed shims
53769-59 Low speed shims
53769-60 Cover plate gasket
53769-61 High speed oil seal
53769-62 Low speed oil seal
53769-63 Hex screw (intermediate cap)
53769-64 Hex screw (high speed cap)
53769-69 Hex screw (low speed cap)
53769-71 Hex screw (cover)
53769-74 Breather plug
53769-75 Magnetic drain plug
53769-96 Grease fitting
53953 Mixer drive shaft seal
53955 Mixer drive shaft

NO. 53886 JOURNAL BOX ASSEMBLY
19
FOOTSWITCH PARTS LIST
224-2 Cord connector, wt, straight, 34"
52654 Male plug w/6’ cord, 5 wire
52655 Female receptacle, 5 pole
52661 Male plug w/12’ cord, 5 wire
52668 Footswitch w/12’ cord and plug
53693 Footswitch
53693-A Cover guard
53693-C Cover gasket
53693-D Cover screw – short
53693-E Cover screw – long
53693-F Ground screw
53693-G Treadle spring
53693-H Internal assembly complete
53693-I Actuator
53693-M Micro switch BA-2R62-A4
53693-O Washer
53693-T Treadle w/actuator & return spring
53693-U Auxiliary treadle return spring
53693-W Treadle
53693-X One actuator & actuator spring assembly
54213 Foot switch w/6’ cord & plug
Item No. Description
53609 Journal box, #62001 on
53724 Auger drive shaft, #62001 on
53785 Journal box seal (2 ea.)
53886 Journal box assembly complete
53888, 53940 Front bearing cup/cone assembly
Order H310A
53889, 53939 Rear bearing cup/cone assembly
Order H311A
53993 Vented grease fitting
53979-1 Cord 8’ w/o foot switch
54213 Foot switch w/6’ cord & plug

20
TANDEM OPERATION
PARTS LIST
272-7-1 516-18 plastic knob – 3 pt.
53489 Dscg. Horn 24/42/46/48 to 24/48/52
inlet less seal
57044 Connec. brkt. AFMG52 to AFMG48
57044 Connec. brkt. AFMG52 to AFMG52
53552-1A Connecting brkt. assem. man/auto
53604 Dscg. horn 52 to 24/48/52 inlet
53667 Dscg. horn 56 to 24/48/52 inlet
53671 Seal only 24/42/46/48 to 24/48/52
inlet
53673 Disc. horn 48-52 w/seal
53933 Seal only 52/56 to 24/48/52 inlet

TANDEM OPERATION ILLUSTRATION FOR 90° INLET
FROM S/N 62001 TO S/N 63591
21

22

TANDEM OPERATION ILLUSTRATION FOR 35° INLET
S/N 63592 ON
24