NHTSA ID Number: 10189433
Manufacturer Communication Number: MGM Catalogue
TSB/Document Date: 2021-03-29
Summary
MGM Brakes catalogue
N/A
N/A
N/A
N/A
P/N Piggyback Plus Kit SAE
MJS1722ET008
MJS1724ET008
MJS2022ET008
MJS2024ET008
MJS2030ET008
P/N Combination METRIC
MJS1722ET049
MJS1724ET049
MJS2022ET049
MJS2024ET049
MJS2030ET049
Wt.Combination
20.32 lb (9.2 kg)
20.32 lb (9.2 kg)
20.32 lb (9.2 kg)
20.32 lb (9.2 kg)
22.70 lb (10.3 kg)
Wt. Single
13.50 lb ( 6.1 kg)
13.50 lb ( 6.1 kg)
13.50 lb ( 6.1 kg)
13.50 lb (6.1 kg)
14.90 lb (6.8 kg)
10.99” (279.1 mm)
A
10.61” (269.5 mm)
10.61” (269.5 mm)
10.61” (269.5 mm)
10.61” (269.5 mm)
B
7.94” (201.7 mm)
7.94” (201.7 mm)
7.94” (201.7 mm)
7.94” (201.7 mm)
8.43” (214.1 mm)
C
6.85” (174.0 mm)
6.85” (174.0 mm)
6.85” (174.0 mm)
6.85” (174.0 mm)
6.85” (174.0 mm)
D
6.76” (171.7 mm)
6.76” (171.7 mm)
6.76” (171.7 mm)
6.76” (171.7 mm)
7.50” (190.5 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)
Additional sizes on page 64-65.
Note: Product information and specifications subject to change without notice.
62
MJS
Performance Plus
Long Stroke Model
Standard
Replacement Parts
1
P/N Series
MJS1722ET
MJS1724ET
MJS2022ET
MJS2024ET
MJS2030ET
Model
MJS1722ET
MJS1724ET
MJS2022ET
MJS2024ET
MJS2030ET
9015240
9015240
9015239
9015239
9015239
Kit - NP Chamber (a)
2
Kit - Nuts & Bolts
9003001
9003001
9003001
9003001
9003001
3
Clamp Band Assembly
8216020
8216020
8216020
8216020
8216020
4
Diaphragm
8017215
8017215
8017820
8017820
8017820
5
Kit - Push-Rod Assembly (a) SAE
8264532
8264532
8264039
8264039
8264039
5a
Kit - Push-Rod Assembly (a) METRIC
9064031
9064031
9064030
9064030
9064030
6
Return Spring
8068021
8068021
8068021
8068021
8068021
7
Kit - Center Hole Shield
9065002
9065002
9065002
9065002
9065002
8
NP Chamber Assembly (a)
9015238
9015238
9015238
9015238
8215238
9
Kit - Nuts & Washers SAE
9002001
9002001
9002001
9002001
9002001
9a
Kit - Nuts & Washers METRIC
9002002
9002002
9002002
9002002
9002002
10
Hex Nut - Yoke SAE
8130004
8130004
8130004
8130004
8130004
10a
Hex Nut - Yoke METRIC
8130016
8130016
8130016
8130016
8130016
11
Kit - Breather Tube
9081001
9081001
9081001
9081001
9081001
12
Kit - Piggyback Plus SAE
MJS1722ET008
MJS1724ET008
MJS2022ET008
MJS2024ET008
MJS2030ET008
Yoke Assembly
Refer to Replacement Parts Section 12
Boot & Retainer
Refer to Replacement Parts Section 12
Note: (a) To ensure correct stroke alert positioning, these kits must be used only on the designated MGM Brake units.
11
12
2
3
4
5/5a
Release Bolt
Patented “Dual Thread Release Bolt”
design, an MGM Brakes exclusive,
provides minimal bolt protrusion at
maximum release. (Approx. 1.00 inch
(25.4 mm) protrusion when manually
released)
6
1
7
8
9/9a
10/10a
Note: Product information and specifications subject to change without notice.
63
OPTIONAL ITEMS - For additional replacement parts, refer to Section 12
MJS
Standard
Stroke
Model
Long
Stroke
Model
Performance Plus
Combination
Piggyback Plus Kit
VMRS# 013-004-000
D
VMRS# 013-004-001
B
A
X
C
E
F
G
MJS 3.00” (76.2 mm) Model Features
• Tamper Resistant Design
• Lighter Weight
• 3 Inch (72.6 mm) Long Stroke
• Compact Size
• Patented Integral Release Bolt Mechanism Minimal Bolt Protrusion - Approx. 1.25 inch (31.8 mm)
protrusion on “Long Stroke” models when manually released
• Lower Hold-Off Pressure (Less Air Consumption)
• Epoxy Coated Return Spring
• Non-Coil Clash Power Spring
• Increased Corrosion Resistance - Steel Head, Epoxy Coated
• Available with 1,749 lb (793.3 kg) - 2,450 lb (1111.3 kg) of
Push-Rod Braking Force @ 1.25 inch (31.8 mm)
Stroke/Service Brake Sizes 17-36
• Center Hole Shield
P/N Series
MJS2422ET
MJS2424ET
MJS2430ET
MJS3022ET
MJS3024ET
Model
MJS2422ET
MJS2424ET
MJS2430ET
MJS3022ET
MJS3024ET
Size
2422
2424
2430
3022
3024
Stroke (in/mm)
3.00” (76.2 mm)
3.00” (76.2 mm)
3.00” (76.2 mm)
3.00” (76.2 mm)
3.00” (76.2 mm)
P/N Combination SAE
MJS2422ET051
MJS2424ET051
MJS2430ET051
MJS3022ET051
MJS3024ET051
P/N Neoprene Diaphragm
N/A
N/A
N/A
N/A
MJS3024ET851
P/N Welded Yoke (2.25”)
N/A
MJS2424ET951
N/A
N/A
MJS3024ET951
P/N Piggyback Plus Kit SAE
MJS2422ET008
MJS2424ET008
MJS2430ET008
MJS3022ET008
MJS3024ET008
P/N Combination METRIC
MJS2422ET049
MJS2424ET049
MJS2430ET049
MJS3022ET049
MJS3024ET049
22.40 lb (10.2 kg)
Wt.Combination
20.40 lb (9.3 kg)
20.40 lb (9.3 kg)
23.70 lb (10.8 kg)
22.40 lb (10.3 kg)
Wt. Single
13.50 lb ( 6.1 kg)
13.50 lb (6.1 kg)
16.26 lb (7.4 kg)
14.60 lb ( 6.6 kg)
- 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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