Elkhart Brass 299-11 EL User Manual

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1302 WEST BEARDSLEY AVENUE • P.O. BOX 1127 • ELKHART IN 46515 • [phone] • FAX [phone]

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Elkhart Model 299-11 EL

Free Standing Elevated Monitor

10’, 15', and 20' Heights

Assembly & Installation Instructions

This instruction sheet is to be used in conjunction with assembly drawing 299-11 EL.

Assembly:

(1) Remove thread protection from end of waterway weldment Sub-Assembly. ( Item 21)

(2) Install Monitor Sub-Assembly (Item 15) onto upper end of Waterway Weldment Assy
(Item 21) by wrenching Monitor Base onto Waterway Weldment. Use a good grade
pipe joint compound on pipe threads.

(3) Align two holes in upper end of drive sleeve (Item 20), with two tapped holes in monitor
swivel joint. Secure drive sleeve to monitor swivel joint using two 3/4 - 16 x 5/8 bolts.
Apply Loc-tite #262 to bolts prior to assembly.

(4) Attach vertical control cables (Item 26) to monitor and vertical control handle as shown
on drawing. Adjust cable so that handle is parallel to stream direction.

(5) Attach nozzle to monitor discharge port. If adjustable fog nozzle is used, attach pattern
control cable to nozzle.

(6) When raising the monitor assembly, do not attach cable or sling to bent tube waterway at top

of assembly. This portion of the assembly is not designed to support the weight of the long

riser, and damage or failure could result.

Installation:

The supply pipe and companion flange configuration to which the 299-11 EL monitor is installed
must be supported to withstand a bending moment of 16,000 ft-lbs applied to the flange face. A
forged steel companion flange and steel pipe with adequate support are recommended. DO NOT
use cast iron companion flange or cast iron pipe.
4”-150# Flanges: Join monitor base flange to companion flange using 5/8-11 SAW Grade 5 bolts
and nuts. Use a 1/16" thick ring gasket designed for use with steel flanges. Torque flange bolts
to 150 ft-lbs (Dry).
6”-150# Flanges: Join monitor base flange to companion flange using ¾-10 SAW Grade 5 bolts
and nuts. Use a 1/16" thick ring gasket designed for use with steel flanges. Torque flange bolts
to 260 ft-lbs (Dry).
6”-300# Flanges: Join monitor base flange to companion flange using ¾-10 SAW Grade 5 bolts
and nuts. Use a 1/16" thick ring gasket designed for use with steel flanges. Torque flange bolts
to 260 ft-lbs (Dry).

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****IMPORTANT****

DO NOT exceed the following maximum allowable flow rates at 100 PSI nozzle pressure:

Monitor

Heights

10 Ft. 750 GPM 127 PSI 1.05 inches
15 Ft. 750 GPM 134 PSI 4.34 inches
20 Ft. 750 GPM 143 PSI 11.33 inches

Pressure and flow characteristics of water supply must be determined prior to monitor installation,
and a restricting device, such as an orifice plate, installed between flanges to limit flow and pressure
to appropriate values as indicated above.

Operation:

Horizontal and Vertical locks: The monitor should always be locked in position when it is to

be left unmanned. The horizontal travel is locked and unlocked using a friction lock operated by
hand wheel assembly (Item 14). Turn the hand wheel assembly clockwise to lock the monitors
horizontal travel and counterclockwise to unlock it. The vertical travel can be locked in position
using the friction lock on the right hand side of the control arm. To lock the monitors vertical
travel turn the lock clockwise using the handle shaft with the knob on the end (Items 1 & 2).
Turn the lock counterclockwise to unlock the vertical travel of the monitor.

both locks are engaged before flowing water.

Controlling Horizontal and Vertical movement: The monitor movement is controlled using

the hand grip (Item 16) located on the end of the control arm assembly. Firmly grasp the hand
grip with one hand and release the vertical and horizontal locks with the other. Only release the
locks enough to allow movement in all directions. Pushing down on the hand grip will raise the
discharge of the monitor and lifting will lower the discharge. Pushing the hand grip to the left
will move the discharge of the monitor to the right and pushing the hand grip to the right will
move the discharge of the monitor to the left. Do not release the monitor controls without

engaging both the horizontal and vertical locks first.

Familiarize all personnel that will be using this equipment with the operation of all the monitor’s
locks and controls before flowing water. The water supply to the monitor should be increased
slowly to prevent whipping of the monitor due to nozzle reaction.

Maintenance:

The monitor should be moved through its entire range of motion and inspected for proper
function of all locks and controls monthly. The monitor should be greased through the two
fittings located on the monitor assembly (Item 15) every six months. General purpose petroleum
grease should be used. Maintain paint as dictated by the environment.

Max. Flow at

100 PSI NP

Maximum Pressure

At Base Flange

Calculated Deflection of

Nozzle at Maximum Flow

Always make sure

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