Maxibrake® 50-SERIES SPRING BRAKES
•
All steel housings provide strength, durability and extra
corrosion resistance.
• Nylon piston and push rod bearings prevent metal-to-
metal contact.
• Packing cup type piston seals provide positive
seal throughout articulating action.
• Dual pistons (service and spring chamber) insures
that pressure bearing surface remains constant.
Maxibrake
®
50-SERIES - SINGLE PACKS - 1 PER BOX
Service
No.
O.E.M.
No.
Description
MA15690
KSC50HBBC-175NN
1.75" Push Rod
MA15691
KSC50HBBC-800NN
8.00" Push Rod
0
Force (lbs)
Force (N)
Stroke (mm)
0
Stroke (in)
76.2
25.4
50.8
0
3.0
2.0
1.0
Maxibrake
®
50-SERIES
Spring Chamber
Performance
Emergency Cylinder Assembly
M5040580
Cap Screw
M5040472
Spring Locator
M5040378
Booster Spring
M5040390
Heavy Spring
M5040388
Piston Bearing
M5040367
Packing Cup
M5040368
Emergency Piston Assembly Kit w/PR
201145-BA
Large Seal
M5040538
Bulkhead
M5040370
Nylon Bushing
M5040372
Snap Ring
M5040373
Self-Tapping Screw
M5040495
Service Packing Retainer
M5040493
Service Piston Assembly
M5040513
Return Spring
M5040364
Return Spring Locator
M5040377
Service Cylinder Assembly
M5040567
Service Filter
M5040402
Filter Retaining Ring
M5040536
Jam Nut
M5040391
Yoke Kit
M5040392
1000
2000
3000
5000
4000
0
4448
8896
13,344
22,240
17,792
101.6
= Nominal Heavy Spring
With Booster
= Nominal Heavy
Spring Only
SERVICE SIZE 50”
Release Bolt Kit:
M5040585
Release Bolt, Release Washer, Instruction Washer
Boot Kit
M5040486
Filter
M5040383
Instruction Washer
M4740161
Maintenance Kit:
RN21AF
SERVICE
NO.
REPLACEMENT
PART
SERVICE
NO.
REPLACEMENT
PART
2 Piston Seals, 3 Piston Bearings, 4 O-Rings,
1 Retaining Ring, 1 Bushing, 1 Locator, 1 Sealant,
1 Lubricant, 2 Filters, 2 Plugs (flexible),
1 Plug (filter), 1 Strap,5 Cap Screws, 8 Tapping
Screws, 2 Packing Retainer, 1 End Cap,
1 Installation Instructions Packaging
