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TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
OVERVIEW

The 100′ Aerial Ladder operates by utilizing two double acting hydraulic lift cylinders which provide smooth, precise elevation from ________________ above horizontal.

0 - 80 degrees

The 100′ Aerial Ladder operates by utilizing two double acting hydraulic lift cylinders which provide smooth, precise elevation from 0-80 degrees above horizontal.

1

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
OVERVIEW

Load capacity varies from ____________ at the tip depending on the degree of elevation.

250-750 lbs.

Load capacity varies from 250-750 lbs. at the tip depending on the degree of elevation.

2

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
OVERVIEW

Description of 100' aerial ladder

4 sections - 1 stationary and 3 sliding sections

36ft in length

8' width with stabilizers nested/18' 4" with stabilizers fully extended (5'2" for each stabilizer)

10'8" in height

3

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
AERIAL CONTROL PANEL OPERATIONS

Steps to activating POWER TAKE OFF (PTO) for an aerial ladder:

- transmission is in neutral

- engage the maxi-brake

- move front brake lock switch to the on position

- open the red cover of PTO switch and flip the switch to the up position (PTO light will illuminate)

4

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
AERIAL CONTROL PANEL OPERATIONS

TRUE/FALSE

The aerial ladder does not need to be bedded to disengage the PTO switch.

FALSE

**The aerial ladder must be bedded and stabilizers fully nested.**

5

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
STABILIZER OPERATIONS

How many feet clearance does each stabilizer require?

5'2"

6

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
STABILIZER OPERATIONS

What is the function of the interlock diverted valve?

The Interlock Diverter Valve (IDV) performs two functions. The IDV directs the flow of hydraulic fluid to power either the stabilizers or the aerial ladder.

7

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
STABILIZER OPERATIONS

A properly placed stabilizer will cause a ________ STABILIZER DOWN light to illuminate in the Stabilizer Control Compartment.

A properly placed stabilizer will cause a GREEN STABILIZER DOWN light to illuminate in the Stabilizer Control Compartment.

8

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
STABILIZER OPERATIONS

Should a function of the Interlock Diverter Valve system fail, the ladder or stabilizers can be moved by accessing the override controls located in the Interlock Control Compartment at the rear of the apparatus. Overriding the IDV is for ____________. This action should only be performed if there is a malfunction and an emergency exists. The ____________ should be immediately notified if the IDV override is operated.

Should a function of the Interlock Diverter Valve system fail, the ladder or stabilizers can be moved by accessing the override controls located in the Interlock Control Compartment at the rear of the apparatus. Overriding the IDV is for EMERGENCY USE ONLY. This action should only be performed if there is a malfunction and an emergency exists. The INCIDENT COMMANDER should be immediately notified if the IDV override is operated.

9

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
STABILIZER OPERATIONS

Who is contacted if the chauffeur uses the emergency hydraulic pump switch thus overriding the interlock diverted valve to control the aerial?

The incident commander

10

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
STABILIZER OPERATIONS

When extending the stabilizers what size is extended first?

The working/inboard side

11

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
STABILIZER OPERATIONS

A stabilizer that is not fully extended horizontally is considered?

Short-jacked

12

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
STABILIZER OPERATIONS

What must be used at all times to help disperse the weight of the apparatus over a large area?

Ground stabilizer pads

13

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
STABILIZER OPERATIONS

What must be illuminated before the aerial can be operated?

Ensure that the green STABILIZER DOWN INDICATOR LIGHT is illuminated. Both STABILIZER DOWN INDICATOR LIGHTS must be illuminated before the aerial can be operated.

14

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
STABILIZER OPERATIONS

Before operating the Aerial Ladder Controls, _________________ must be placed in the highest hole possible in the stabilizers.

Before operating the Aerial Ladder Controls, MANUAL SAFERY PINS must be placed in the highest hole possible in the stabilizers.

15

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
STABILIZER OPERATIONS

When the ground is not level and the apparatus is leaning, start with the stabilizer on the ______________ first.

When the ground is not level and the apparatus is leaning, start with the stabilizer on the LOWEST SIDE first (the direction the apparatus is leaning).

16

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
STABILIZER OPERATIONS

What is used to aid in the leveling of the apparatus?

The inclinometer

17

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
PEDESTAL CONTROL OPERATIONS

The Safe Rotation Limit Exceeded light Light indicates?

Safe Rotation Limit Exceeded light Light indicates when aerial ladder is rotated past its safe limit when operating on the Short-jacked side or during a mechanical malfunction

18

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
PEDESTAL CONTROL OPERATIONS

This Light indicates (and warning horn sounds) when ladder is subjected to an overload condition.

Ladder Overload Light

19

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
PEDESTAL CONTROL OPERATIONS

The Emergency Override Rotation Limit switch When activated?

Emergency Override Rotation Limit switch When activated, overrides the rotation limit system.

20

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
PEDESTAL CONTROL OPERATIONS

This Switch Activates auxiliary electric hydraulic pump circuit.

Emergency Pump Switch Activates auxiliary electric hydraulic pump circuit.

21

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
PEDESTAL CONTROL OPERATIONS

The aerial enable switch allows?

The aerial enable switch allows operation of aerial control valve (must be depressed for movement of aerial)

22

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
PEDESTAL CONTROL OPERATIONS

Always move control levers at a slow deliberate speed to avoid jerky motions and consequent “whip” of the ladder which could cause personal injury or ladder damage. Turning off the _________________ on the Pedestal Control Panel will reduce pressure in the system and help with feathering the control lever.

THROTTLE CONTROL SWITCH

Always move control levers at a slow deliberate speed to avoid jerky motions and consequent “whip” of the ladder which could cause personal injury or ladder damage. Turning off the THROTTLE CONTROL SWITCH on the Pedestal Control Panel will reduce pressure in the system and help with feathering the control lever.

23

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
PEDESTAL CONTROL OPERATIONS

Extension Footage numbers are located on the base section vertical struts and the corresponding bright colored vertical strut of the second section. When the colored strut is lined up with a footage number, the ladder is extended to that respective length. Always match the ____________ and _______________ for proper load capacity.

INCLINOMETER AND EXTENSION FOOTAGE NUMBERS

Extension Footage numbers are located on the base section vertical struts and the corresponding bright colored vertical strut of the second section. When the colored strut is lined up with a footage number, the ladder is extended to that respective length. Always match the INCLINOMETER and EXTENSION FOOTAGE NUMBERS for proper load capacity.

24

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
AERIAL EMERGENCY HYDRAULIC OPERATIONS

TRUE/FALSE

The aerial ladder has an emergency hydraulic system. This system is to be used when the normal PTO fails or the engine shuts down, and the aerial ladder or jacks need to be used.

TRUE

25

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
AERIAL EMERGENCY HYDRAULIC OPERATIONS

TRUE/FALSE

The electrical pump and batteries DO NOT need a cool-down period between operations

FALSE

The electrical pump and batteries need a cool-down period between operations

26

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
AERIAL EMERGENCY HYDRAULIC OPERATIONS

TRUE/FALSE

When the Normal/Emergency Hydraulic Switch is placed in the Auxiliary position enabling the electric hydraulic pum, the engine must be running.

FALSE

The ENGINE CANNOT BE RUNNING when the Normal/Emergency Hydraulic Switch is placed in the Auxiliary position enabling the electric hydraulic pump.

27

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
AERIAL EMERGENCY HYDRAULIC OPERATIONS

Emergency Aerial Ladder Operation -

- engine OFF, place the ignition ON, place the transmission in the NEUTRAL (N) position and apply all brakes.

- Aerial Control Panel place the PTO CONTROL SWITCH to the ON position and move the NORMAL/EMERGENCY HYDRAULIC SWITCH to the AUXILIARY position (a red indicator light will illuminate).

- Pedestal Controls depress the AERIAL ENABLE FOOT SWITCH.

- Activate the EMERGENCY PUMP SWITCH (this is a momentary switch which means you must hold the switch in the “ON” position) and at the same time activate the function (control lever) that you want the ladder to perform.

- Once ladder has completed the required function release both the control lever for that function and the EMERGENCY PUMP SWITCH at the pedestal and allow for a cool down period before attempting another function.

28

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
AERIAL EMERGENCY HYDRAULIC OPERATIONS

What is the rotating limiting device?

The rotating limiting device is a safety device that limits turntable rotation to keep the apparatus from overturning during operations where the stabilizers are not fully extended horizontally (Short-Jacked).

- depressing the emergency override rotation limit switch overrides this device.

29

TRAINING BULLETINS - APPARATUS L-7 REARMOUNT AERIAL LADDER
AERIAL EMERGENCY HYDRAULIC OPERATIONS

When will the aerial's rotating limiting device activate?

- apparatus stabilizers have not been fully extended horizontally (Short-Jacked)

- mechanical malfunction.

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