Havis C-HDM Series Installation Instructions Download Page 1

A-

GUIDE RING BUSHING REMOVAL

WE STRONGLY RECOMMEND NOT TO REMOVE THE 

GUIDE RING BUSHING, BUT IF REMOVAL OF INNER POLE 

IS DESIRED - FOLLOW THIS SIMPLE REMOVAL 

INSTRUCTION

INSERT MAXIMUM 1" DIAMETER OBJECT WITH 

1.

SUFFICIENT LENGTH AND DROP INSIDE INNER POLE.

MAKE SURE NOTHING PREVENTS GUIDE RING 

2.

BUSHING FROM BEING EJECTED UNDERNEATH. HIT 

WITH A HAMMER TO FORCE THE GUIDE RING 

BUSHING OUT. 

7/8" - 1" 

DIAMETER

OBJECT

SUPPORT ARM

(OPTIONAL)

B - 

INSTALL SPIDER COLLAR (OPTIONAL 

COMES WITH C-HDM-401 & 403)

IF MOUNTING THE SPIDER COLLAR TO THE INNER 

1.

POLE USE CM003406 REDUCING BUSHING. SPREAD 

AND SNAP OVER THE INNER POLE.

LOOSELY ATTACH SPIDER COLLAR TO THE OUTER 

2.

POLE OR CM003406. DO NOT MOUNT SPIDER 

COLLAR ABOVE OUTER POLE HORIZONTAL CUT.

SPIDER MUST BE

BELOW THIS SLOT

ON THE OUTER POLE

C - 

INSTALL OPTIONAL C-HDM-416

IF MOUNTING C-HDM-416 TO THE INNER POLE USE 

1.

CM003406. SPREAD THE PIECE AND IT SHOULD SNAP 

OVER THE INNER POLE.

ATTACH C-PM-101 TO CLAMP ASSEMBLY USING 

2.

LONG CARRIAGE BOLTS INSERTED THROUGH THE 

PRINTER AND ONE PIECE OF EXTRUSION.

ATTACH POLE CLAMP TO THE OUTER POLE OR 

3.

CM003406.  AFFIX SECOND PIECE OF EXTRUSION 

AROUND POLE AND LOOSELY TIGHTEN THE 

HARDWARE.  DO NOT MOUNT CLAMP ABOVE 

OUTER POLE HORIZONTAL CUT.

CM003406 REDUCING

BUSHING IS NECESSARY

IF MOUNTING TO

THE INNER POLE.

(USE ONLY ON FIXED

HEIGHT POLES)

C-PM-101

SOLD SEPARATELY

D- 

INSTALL GAS SHOCK (OPTIONAL)

(SKIP IF GAS SHOCK IS NOT IN USE)

1.

UNSCREW SMALL PLASTIC DISC FROM SHOCK 

2.

INSERT GAS SHOCK ASSEMBLY UPWARD FROM 

THE BOTTOM OF HDM POLE ASSEMBLY WITH GAS 

SHOCK'S ROD FACING DOWNWARD. GAS 

SHOCK WILL SANDWICH BETWEEN MOUNTING 

BASE C-HDM-100 SERIES (NOT SHOWN) AND 

ACTION ADAPTER C-HDM-300 SERIES (NOT 

SHOWN).

ONCE GAS SHOCK SITS PROUD OF THE INNER 

3.

POLE REATTACH SMALL PLASTIC DISC

GAS SHOCK

(OPTIONAL)

E - 

INSTALL C-HDM-409 OPTIONAL

& COLLAR CLAMP ALIGNMENT

THIS CAN BE DONE EITHER AT THIS POINT OR ONCE 

1.

THE C-HDM-100 SERIES BASE IS ALREADY IN THE 

VEHICLE. YOU WILL NEED THE OFFSET THAT WAS 

WIITH THE C-HDM-100 BASE IF APPLICABLE.

DECIDE ON THE ORIENTATION OF THE C-HDM-409. 

2.

ENSURING THAT IF THE HANDLE VERSION OF THE 

POLE IS BEING USED THE TWO SLOTS ARE NO MORE 

THAN 45 DEG APART IF THIS IS THE CASE ROTATE THE 

POLE TO THE CORRECT POSITION.

IF NO HANDLE IS BEING USED ENSURE THE OUTER 

3.

POLE SLOT AND THE CLAMP COLLAR SLOT LINE UP.

TIGHTEN ALL THE HARDWARE.

4.

F - 

INSTALL C-HDM-410-412 OPTIONAL

THIS CAN BE DONE EITHER AT THIS POINT OR ONCE 

1.

THE C-HDM-100 SERIES BASE IS ALREADY IN THE 

VEHICLE. YOU WILL NEED THE OFFSET THAT WAS 

WIITH THE C-HDM-100 BASE IF APPLICABLE.

DECIDE ON THE ORIENTATION OF THE OFFSET. 

2.

ENSURING THAT IF THE HANDLE VERSION OF THE 

POLE IS BEING USED THE TWO SLOTS ARE NO MORE 

THAN 45 DEG APART IF THIS IS THE CASE ROTATE THE 

POLE TO THE CORRECT POSITION.

IF NO HANDLE IS BEING USED ENSURE THE OUTER 

3.

POLE SLOT AND THE CLAMP COLLAR SLOT LINE UP.

TIGHTEN ALL THE HARDWARE.

4.

45°

MAX

45°

MAX

SLOTS IN TUBE

AND CLAMP

ALIGNED

HAMMER

PROJECT #

REV.

DESCRIPTION

DATE

BY

CHECKED BY

1765

3-13

REVISION DATE CORRECTED TO PT895 DOCUMENTED CHANGE. 

NO OTHER CHANGES

8/5/2014

KDAVIS

75 JACKSONVILLE RD,

WARMINSTER, PA. 18974

1-800-524-9900

SIZE

SCALE: 1:8

SHEET 1 OF 4

DO NOT SCALE DRAWING

WEIGHT (LB):   12.634

TITLE:

DWG.  NO.

C-HDM_INST

REV

A

3-13

HAVIS, INC.

INSTALLATION INSTRUCTIONS, C-

HDM MOUNTING BASES

Reviews: