021519
MCS30 Rev B
7
4.3
Davit Arm Assembly
4.3.1
12” to 29” Offset Davit Arm
The 12” to 29” Offset Davit Arm is shipped in a folded position, see Figure 6. Remove the push button pin as shown in Figure 7. Rotate the
arm into position and align the top tube hole with the hole in the bracket, see Figure 8. Insert the push button pin as shown in
Figure 9.
Figure 6
Figure 17
Figure 8
Figure 9
The Davit Arm is a dynamic anchorage system that will vary in its performance depending depending upon the configured offset. Care
should be taken to understand the capacity of the system and anchorage strength requirements; see Figure 10 for the load ratings for the
12” to 29” Offset Davit Arm.
PP1
PP2
PP3
PP4
3600 lbs*
(16 kN)
3600 lbs*
(16 kN)
3100 lbs*
(13.8 kN)
2500 lbs**
(11.1 kN)
1800 lbs
(8 kN)
1800 lbs
(8 kN)
1800 lbs
(8 kN)
1800 lbs
(8 kN)
1800 lbs
(8 kN)
1800 lbs
(8 kN)
1800 lbs
(8 kN)
1800 lbs
(8 kN)
5000 lbs*
(22.2 kN)
5000 lbs*
(22.2 kN)
5000 lbs*
(22.2 kN)
5000 lbs*
(22.2 kN)
AP
TP
BP
RP
Anchor P
oin
t
Mast Pin Position
PP1
PP2
PP3
PP4
11.75”
(298.5 mm)
13.5”
(342.9 mm)
16”
(406.4 mm)
18.5”
(469.9 mm)
19.25”
(489.0 mm)
22.0”
(558.8 mm)
25.5”
(647.7)
29.25”
(743.0 mm)
MIN
MAX
Davit Arm Offset Range
Mast Pin Position
Acceptable Load Ratings
* Davit configuration suitable for two-man rescue with a 5 to 1 safety factor.
** Davit configuration suitable for two-man rescue with a 4 to 1 safety factor
.
Figure 10 - 12” to 29” Offset Davit Arm Load Ratings
