NHTSA ID Number: 10189433
Manufacturer Communication Number: MGM Catalogue
TSB/Document Date: 2021-03-29
Summary
MGM Brakes catalogue
Note: (a) To ensure correct stroke alert positioning, these kits must be used only on the designated MGM Brake units.
11
12
13
2
3
4
Weld Reinforced Non-Pressure Housing
Heavy-gauge formed steel flat-bottom design, epoxy-coated for
total corrosion protection and “weld-reinforced” mounting studs
for added support in extreme vibration applications. (bolt actually
epoxy coated - depicted here lighter for visual purposes)
5/5a
1
6
7
8
9/9a
10/10a
Note: Product information and specifications subject to change without notice.
47
DOUBLE DIAPHRAGM - 3” LONG STROKE
Model
1
48
SECTION 3
Standard Stroke Model
Page(s)
Section 3: Long Life Double Diaphragm Spring Brakes.................... 48-57
Standard Stroke Model
LTR-T
Integral Release Bolt, Tamper Resistant, Tube................................................................................50-51
Integral Release Bolt, Tamper Resistant, Long Stroke.....................................................................52-53
LTR-L3W
Integral Release Bolt, Tamper Resistant, Long Stroke, Welded NPC..............................................54-55
LTR-L3T
Integral Release Bolt, Tamper Resistant, Long Stroke, Tube...........................................................56-57
LONG LIFE
LTR-L3
DOUBLE DIAPHRAGM
Long Stroke Model
*** For information on availability, contact MGM Brakes Customer Service,
1-800-527-1534 x750 (U.S. & Canada), or for International
email: [email protected]
Note: Product information and specifications subject to change without notice.
49
LTR-T
Standard Stroke Model
Combination
Piggyback Plus Kit
D
VMRS# 013-004-001
VMRS# 013-004-000
B
A
LONG LIFE
X
F
E
C
G
LTR-T Model Features
DOUBLE DIAPHRAGM
• Heavy-Duty “Long Life” Power Spring 100 lb (45.4 kg) additional
parking brake force @ 1.25” (31.8 mm) of stroke
• Heavy-Duty Steel Non-Pressure Chamber
(8 Gauge Standard on Type 3030 Aftermarket Models)
• Stroke Alert
• Polymer Push-Rod Guides
• Heavy-Duty Nylon Reinforced Diaphragms
• Heavy-Duty Nylon Reinforced Neoprene Diaphragms (Optional)
• External Breather Tube
• Tamper Resistant Design
• Molded Nitrile Rubber Push-Rod Air Seal
• Center Hole Shield
• Six (6) Year Limited Warranty
• Integral Release Bolt
• 360 Aluminum Alloy
• Low Friction Piston & Guide
• Epoxy Coated Return Spring
P/N Series
3827
3831
Model
LTR2430LT
LTR3030T
Size
2430
3030
Stroke
2.50” (63.5 mm)
2.50” (63.5mm)
P/N Combination SAE
3827051
3831051
P/N Neoprene Diaphragm
3827851
N/A
P/N Welded Yoke (2.25”)
N/A
N/A
P/N Piggyback Plus Kit SAE
3827008
3831008
P/N Combination METRIC
***
***
Wt.Combination
18.5 lb (8.4 kg)
19.9 lb (9.0 kg)
Wt. Single
11.4 lb (5.2 kg)
11.7 lb (5.3 kg)
A
11.8” (299.7 mm)
11.86” (301.2 mm)
B
9.68” (245.9 mm)
9.46” (240.3 mm)
C
7.38” (187.5 mm)
8.27” (210.1 mm)
D
8.18” (207.8 mm)
8.18” (207.8 mm)
E
4.75” (120.7 mm)
F
5/8” - 11 UNC (M16 x 1.5 - 6g)
G
5/8” - 18 UNF (M16 x 1.5 - 6g)
Inlets
3/8” - 18 NPTF (M16 x 1.5 - 6H)
X - Min. (in the caged position)
8.00” (203.2 mm)
*** For information on availability, contact MGM Brakes Customer Service,
1-800-527-1534 x750 (U.S. & Canada), or for International email: [email protected]
Note: Product information and specifications subject to change without notice.
50
LTR-T
Standard Stroke Model
P/N Series
Model
3827
3831
LTR2430LT
LTR3030T
1
Kit - NP Chamber (a)
9015152
9015157
2
Kit - Nuts & Bolts
9003001
9003001
3
Clamp Band Assembly
8216025
8216045
4
Diaphragm
8017141
8017730
5
Kit - Push-Rod Assembly (a) SAE
9064002
9064003
5a
Kit - Push-Rod Assembly (a) METRIC
***
***
6
Return Spring
8068002
8068002
7
Kit - Center Hole Shield
9065002
9065002
8
NP Chamber Assembly (a)
9015151
9015122
9
Kit - Nuts & Washers SAE
9002001
9002001
9a
Kit - Nuts & Washers METRIC
***
***
8130004
8130004
***
***
10
Hex Nut - Yoke SAE
10a
Hex Nut - Yoke METRIC
11
Kit - Breather Tube
9081001
9081001
12
Piggyback Plus Kit SAE
3827008
3831008
OPTIONAL ITEMS - For additional replacement parts, refer to Section 12
Yoke Assembly
Refer to Replacement Parts Section 12
Boot & Retainer
Refer to Replacement Parts Section 12
Note: (a) To ensure correct stroke alert indicator positioning, these kits must be used only in the designated MGM Brakes units.
12
11
3
4
5/5a
LONG LIFE
2
Integral Manual Release Bolt
Permanently installed, can’t get lost.
Permits safe, easy release to reline
brakes or move vehicle in absence of
air pressure.
1
6
7
8
9/9a
10/10a
*** For information on availability, contact MGM Brakes Customer Service,
1-800-527-1534 x750 (U.S. & Canada), or for International email: [email protected]
Note: Product information and specifications subject to change without notice.
51
DOUBLE DIAPHRAGM
Replacement
Parts
Replacement Parts
LTR-L3
Long Stroke
Model
Standard
Stroke
Model
Combination
D
Piggyback Plus Kit
VMRS# 013-004-001
VMRS# 013-004-000
B
A
LONG LIFE
X
C
F
E
G
LTR-L3 Model Features
DOUBLE DIAPHRAGM
• Square Port Bosses (Long Stroke Identification)
• Heavy-Duty “Long Life” Power Spring 100 lb (45.4 kg) additional
parking brake force @ 1.25” (31.8 mm) of stroke
• Heavy-Duty Steel Non-Pressure Chamber
(8-Gauge Standard on Type 3030 Aftermarket Models)
• Stroke Alert
• Polymer Push-Rod Guides
• Heavy-Duty Nylon Reinforced Diaphragms
• Heavy-Duty Nylon Reinforced Neoprene Diaphragms (Optional)
• Tamper Resistant Design
• Molded Nitrile Rubber Push-Rod Air Seal
• Center Hole Shield
• Six (6) Year Limited Warranty
• Integral Release Bolt
• 360 Aluminum Alloy
• Low Friction Piston & Guide
• Epoxy Coated Return Spring
P/N Series
3828
3832
Model
LTR2430L3
LTR3030L3
Size
2430
3030
Stroke
3.00” (76.2 mm)
3.00” (76.2 mm)
P/N Combination SAE
3828051
3832051
P/N Neoprene Diaphragm
N/A
N/A
P/N Welded Yoke (2.25”)
3828951
3832951
P/N Piggyback Plus Kit SAE
3828008
3832008
P/N Combination METRIC
***
***
Wt.Combination
19.3 lb (8.8 kg)
20.5 lb (9.3 kg)
Wt. Single
12.3 lb (5.6 kg)
12.6 lb (5.7 kg)
A
13.0” (330.2 mm)
13.0” (330.2 mm)
B
10.63” (270.0 mm)
10.63” (270.0 mm)
C
7.38” (187.5 mm)
8.27” (210.1 mm)
D
8.18” (207.8 mm)
8.18” (207.8 mm)
E
4.75” (120.7 mm)
F
5/8” - 11 UNC (M16 x 1.5 - 6g)
G
5/8” - 18 UNF (M16 x 1.5 - 6g)
Inlets
3/8” - 18 NPTF (M16 x 1.5 - 6H)
X - Min. (in the caged position)
8.00” (203.2 mm) (a)
Welded Yoke Chamber
1.3”(33 mm)
Y
- Mixes well with conventional fluids
- Low-moisture formula provides excellent vapor lock...
- Ideal for hydraulic and disc brakes
- Provides an extra margin of safety in extreme braking...
- Mix of polyglycol ethers ensures hot brake-system operation...
- Excellent for ABS, disc and drum brake systems
- Delivers braking power when needed by avoiding a spongy...
- Both wet and dry boiling points exceed the minimum...
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TSB/Document ID: MGM Catalogue
Replacement Service Bulletin Number:
MFR Communication Date: 2017-12-05
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: SERVICE BRAKES, HYDRAULIC
MFR Component System:
MFR Component Subsystem:
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