RP-95028B/N
Revised 09-07
Catalog Section 40
(00-02-0106)
Rack Puller for Diesel Engines
Model RP75
■
Pulls Injection Pump or
Air Intake Shut-off Lever
■
30 lbf (133 N) Operating Force
■
Models Available for 12 or 24 Volt Systems
®
■
Operates on Signal from SWICHGAGE
Installed on the Engine or Driven Equipment
Description
Dimensions
How to Order
The RP75 rack puller is a semi-automatic device
that provides a pulling force to initiate shutdown
of diesel engines and equipment.
Specify model number.
Side View
Wiring
Terminals
Reset Knob
and Stem
RP75 – ____ – ____
Voltage
The RP75 connects to the injection pump or air
intake shut-off lever via a cable (chain optional).
A coil spring, within the RP75, is reset manually
and is held in place by an electromagnet. When
12 = 12 VDC
24 = 24 VDC
Calibration
3-1/4 in.
(83 mm)
5-1/2 in.
(140 mm)
Blank = 4 ft. (1.2 m) cable
8 = 8 ft. (2.4 m) cable
®
the SWICHGAGE detects a malfunction, the
10-1/4 in.
(260 mm)
electromagnetic circuit is interrupted through a
Magnetic Switch–releasing the coil spring thus
pulling the cable/chain to actuate shutdown. The
spring, when fully compressed, exerts a pull of 30
lbf (133 N).
12 = 12 ft. (3.7 m) cable
C = Chain 30 in. (762 mm)
Rear View
Mounting Hole
Dimensions
Service Parts
Mounting
Studs
Specify part number.
The RP75 is available for 12 or 24 VDC applica-
2-3/8 in.
(60 mm)
1/4-20
Part Number
40-00-0021
40-00-0044
40-01-0050
40-01-0053
40-01-0054
Description
®
tions and is compatible with all SWICHGAGE
(4 places)
12 VDC core assembly
Shaft solenoid assembly
Bushing shaft assembly
Case repair kit
instruments.
Specifications
3-3/4 in.
(95 mm)
1-1/4 in.
(32 mm)
Operating Force: 30 lbf (133 N) maximum,
Cocking rod, bushing and
knob repair kit
10 lbf (44 N) minimum.
40-05-0136
40-05-0149
80-04-1030
Spring, main actuating
Spring, cocking rod return
2 Screws, machined #10-24
x 3/8 pan HD steel CAD II
Coil Voltage: Specify 12 or 24 VDC.
Coil Resistance: RP75-12: 32.2 ohms.
RP75-24: 129.8 ohms.
Length of Travel: 1-7/8 in. (48 mm).
Control Linkage
40-00-0024
24 VDC core assembly
•
Cable: 4ft. (1.22 m); Optional 8 ft. (2.43 m)
or 12 ft. (3.65 m) available.
Chain (optional): 30 in. (762 mm).
Warranty
A limited warranty on materials and workmanship
is given with this FW Murphy product. A copy of
the warranty may be viewed or printed by going to
•
NOTE: Specify options when ordering.
Shipping Weight: 5 lbs 3 oz. (2.4 kg).
Shipping Dimensions: 9-1/4 x 8-1/4 x
5-1/4 in. (235 x 210 x 133 mm).
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