RITE-HITE PitMaster II Bedienungsanleitung

Document Name: PMII0001

Manual Part #: 39500163

Publication: AMEN00401 2021-04-02

PitMaster™ II

Under-leveler Seal

Installation/Service/Owner's Manual

Language: English

NOTICE TO USER . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

SAFETY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

INSTALLATION

Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3ply Top Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Side Seals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Main Curtain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Filler Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Trim Main Curtain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . 9

PARTS

PitMaster II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

PitMaster™ II Under-leveler Seal Installation/Service/Owner's Manual Rite-Hite®

2Publication: AMEN00401 2021-04-02

NOTICE TO USER

Thank you for purchasing a Rite-Hite product.

The PitMaster™ II Under-leveler Seal saves energy,

helps maintain pit cleanliness, and reduces contaminants

entering your facility by sealing gaps beneath and around

the dock leveler.

Read and understand contents of this manual prior to

installation or operation of this equipment.

All instructions assume installer is outside of the building,

facing the loading dock.

The English version of this manual shall prevail over any

error in, or conicting interpretation of, any translations.

Rite-Hite reserves the right to substitute and/or modify

parts and drawings. If separate prints are included with

the unit, they supersede the manual.

For best results, have this product serviced by an

authorized Rite-Hite representative.

A Planned Maintenance Program (P.M.P.), customized to

your specic operation is available and recommended.

For a P.M.P., contact your local Rite-Hite representative

or Rite-Hite technical support at (U.S.) 888-456-3625,

(S.A.) +55 21 99616 4421, (E.U.) +49-5693 98700.

The Rite-Hite products in this manual are covered by one or more of the

following U.S. patents: 6014844, 6044597, 6205721, 6233885, 7146673,

7185463, 7246467, 7287353, 7584517, 7695048, 7757442, 7877831,

7882663, 8042307, 8141305, 8156995, 8307588, 8327587, 8353136,

8458960, 8495838, 8540007, 8752335, 8800086, 8839842, 8887447,

8915029, 8943630, 8991467, 9003724, 9003725, 9010039, 9079713,

9162832, 9170044, 9187271, 9193543 9534372, 9534373, 9551181,

9592972, 9624049, 9751703, 9797127, 9797128 and may be covered

by additional pending U.S. and foreign patent applications.

Manufactured by Rite-Hite Environmental Enclosure Corporation.

SAFETY

Safety Identifications

DANGER

Indicates a hazardous situation which, if not

avoided, will result in death or serious injury.

WARNING

Indicates a hazardous situation which, if not

avoided, could result in death or serious injury.

CAUTION

Indicates a hazardous situation which, if not

avoided, could result in minor or moderate injury.

NOTICE

Indicates a situation which can cause damage to the

equipment, personal property and/or the environment,

or cause the equipment to operate improperly.

NOTE:A note is used to inform you of important

installation, operation, or maintenance information.

General

DANGER

Follow all safety instructions for your leveler before

installing, servicing or operating the PitMaster II.

WARNING

To prevent unauthorized use, barricade the work

area at dock and ground level while service work

is being performed.

Rite-Hite®Installation/Service/Owner's Manual PitMaster™ II Under-leveler Seal

Publication: AMEN00401 2021-04-02 3

INSTALLATION

Preparation

Non-Standard Levelers

• Auto Retracting Toeguards (competitive models):

The PitMaster II cannot be applied to units with auto

retracting toeguards. Consult Rite-Hite Applications.

• Cantilever Docks and Self Standing Frames:

You must consult Rite-Hite Applications before

proceeding to make sure your application is adaptable.

The PitMaster II can be adapted to some cantilever

docks and self standing frame applications.

Standard Under-leveler Seal

Instructions show how to install a PitMaster II Under-

Leveler Seal on a Rite-Hite model leveler. Most of the

instructions are applicable for all situations/models with

minor adjustments unless otherwise noted.

1. Review the site information and survey.

2. Verify all components were received and made

to the correct specifications. Notify your Rite-Hite

Representative if parts are missing or damaged.

3. Before installing the under-leveler seal you must:

• Make sure the leveler is working correctly.

• Perform any maintenance on the leveler, if required.

4. Make sure the leveler is in the maintenance position

and that the safety strut(s) are in place. Remove

any existing under-leveler seals. Existing seals can

interfere with PitMaster II operation.

Adapting for Obstacles

The PitMaster II is designed to be adapted to most site

conditions. These obstacles are adaptable at installation:

• Leveler Under-Structure:

The main curtain is tted with 3 layers of looped fabric

at the base of the curtain. These loops can be trimmed

to seal and t around most leveler under-structures. The

main curtain is also tted with exible HMWPE (High

Molecular Weight Polyethylene) panels to conform to

di󰀨ering pit conditions.

• Toe Guards:

The width of the main curtain and top section should t

between the toe guards of the leveler. If the PitMaster II

main curtain or top section extends over the toe guards,

trim either component in the eld to t.

In some cases, side seals may need to be trimmed

shorter or installed further into the pit if toe guards are

damaged or bent.

• Conduit or Pipe:

Filler panels can be trimmed to t around conduit

extending out the front of the pit. To accommodate this,

the magnets holding the ller panels to the pit may need

to be moved. If moved, you must re-attach both magnets

so they are level with the pit oor.

• Non-standard Leveler Models:

Review all the instructions included in this document.

Use these as a reference when applying the PitMaster II

Under-leveler seal to a non-standard leveler model.

Contact your local Rite-Hite representative with questions.

PitMaster™ II Under-leveler Seal Installation/Service/Owner's Manual Rite-Hite®

4Publication: AMEN00401 2021-04-02

3ply Top Section

A B

Outside of Dock Leveler Side

3Ply Top Section

Standard

Spring Clips

with O-Rings

1. Align the 3ply top section (A) with the leveler plate.

Hold 3ply in place with a clamp, if needed.

Find if trim outs (B) are required around the lip piston,

lip stop bolt, pull chain or other obstacles. Mark trim

outs with a white chalk pencil and trim.

NOTE:

• For a better seal on lip stop bolts, cut a plus pattern

or cross. Do not cut circular holes.

• If the leveler has a "lip stored switch', trim the

top section around the switch. Contact Rite-Hite

applications if the "lip stored switch" cannot be

e󰀨ectively trimmed around.

The 3ply top section must sit uniformly at across the

front of the leveler. Set 3ply top section aside after trim

outs are made.

2. When installing spring clips to 3 Ply top section:

• Select spring clip size to use (2 sizes supplied).

• Select the orientation of the spring clips before

attaching screws to spring clips (Figure 2).

• Install screws so the end of the screw is facing out

from dock when spring clip is mounted. Make sure

the screw is tight or it may un-thread when attaching

nut and washer.

NOTE:2 of the spring clips will require O-rings to be

attached. Location is described in next step.

Figure 1

Figure 2

INSTALLATION

Rite-Hite®Installation/Service/Owner's Manual PitMaster™ II Under-leveler Seal

Publication: AMEN00401 2021-04-02 5

3ply Top Section Continued

16 in

(405 mm)

16 in

(405 mm)

19 in

(480 mm)

19 in

(480 mm)

19 in

(480 mm)

Side View

3. Attach spring clips in 4 locations (minimum) (C) on

either the leveler plate or leveler stringers. Use a mallet

or hammer to pound spring clips into position (G).

NOTE:For levelers with limited or no mounting

locations, the clips may need to be screwed to the

leveler stringers. See examples (H).

4. Attach 2 of the remaining spring clips (with O-rings) to

the leveler stringers (D1).

• The stringers used should be close (within 4 in

[100 mm]) to 16 in (405 mm) from the center of the

leveler.

• Locate spring clips 19 in (480 mm) back from the

front of the stringers (D2).

5. Align the 3ply top section over the top of the spring

clips. Mark each screw location on the top section.

Cut or drill holes so the screws come through

the 3ply. Add provided washer and nut to each

screw (E, F).

NOTE: The spring clips ≈ 16 in (405 mm) from the

center (F) will have an O-ring. See "Figure 2" on

page 4.

Figure 3

Figure 4

INSTALLATION

PitMaster™ II Under-leveler Seal Installation/Service/Owner's Manual Rite-Hite®

6Publication: AMEN00401 2021-04-02

INSTALLATION

Side Seals

3 1/4 in

(85 mm)

Front View

1. On both sides of the pit wall, mark 3 1/4 in (85 mm)

back from the front of the pit. This should

approximately be the end of the steel pit angle.

2. Align side seal with mark. If side seal is taller than the

pit depth (A), it will need to be trimmed. To trim, flip

the side seal so the bottom of side seal (B) is on the

top. Mark the bottom of the side seal (C) at the top of

the pit, then trim off excess.

3. Mark a minimum of 3 hole locations (D) for the side

seal anchors, two near the top and one near the

bottom, on opposite sides of the side seal. Drill and

anchor the side seal with 1/4 in x 1-1/4 in concrete

anchors (supplied by others).

4. Repeat these steps on opposite side of pit.

Main Curtain

Side View:

Installation/Maintenance

Side View:

Operation

G1 H

1. Attach the main curtain to the hook and loop fastener

on the 3ply top section. Mark the center on top

section (E) and align the top of the Rite-Hite diamond

with the center mark.

2. Clip shock cords as required:

• Installation/Maintenance;

Clip shock cords (G1) from the back of the main

curtain to the O-rings (F) on the top section. This

holds the curtain out of the way while installing

remaining components.

• Operation;

Clip shock cords (G2) to O-rings (H) to put the main

curtain in the operating position.

Figure 5

Figure 6

Rite-Hite®Installation/Service/Owner's Manual PitMaster™ II Under-leveler Seal

Publication: AMEN00401 2021-04-02 7

INSTALLATION

Filler Panel

Attach ller panels on both sides of the pit (A) with magnet

connection. Depending on the pit it may be necessary to:

• Trim ller panel sides/edges to t between pit wall and

leveler under-structure.

• Trim or drill ller panel to t around obstructions

(e.g. wires, pipe or conduit).

• Remove the magnets and anchor the ller panels.

NOTE:

• DO NOT use a ller panel, if leveler under-structure

extends to the edges of the pit or across the entire

structure of the pit.

• Filler panel can overlap leveler under-structure (B) by up

to 2 in (51 mm). Magnets must remain ush with pit oor.

High Negative Pressure Applications

Side View

For high negative pressure buildings, the bottom ap of

main curtain (C) can be attached to ller panel magnet

brackets (D). Remove washer (E) and re-attach with

bottom ap of main curtain between washer and magnet

bracket.

Figure 7

Figure 8

PitMaster™ II Under-leveler Seal Installation/Service/Owner's Manual Rite-Hite®

8Publication: AMEN00401 2021-04-02

INSTALLATION

Trim Main Curtain

1. Drop main curtain to the operating position by

removing the shock cords (A) from the 3ply top

section and attaching them to the spring clips

19 in (483 mm) back on the leveler stringers. See

side view of "Figure 6" on page 6.

NOTE:Main curtain should not be pulled into the pit

by the shock cords. Curtain should be aligned with or

in front of the side seals. If the shock cords appear to

be pulling back on the main curtain, adjust the spring

clips forward until curtain is properly aligned.

2. Trim flaps of the main curtain around leveler

sub-structure. Start with the layer furthest to the back

and work forward. Trim flaps so that all 3 layers fit

around all parts of leveler sub-structure.

Make sure PitMaster II is sealing e󰀨ectively.

It may be necessary to trim all aps.

NOTE:If the leveler has a "lip stored switch", trim

the top section around the switch. Contact Rite-Hite

applications if the "lip stored switch" cannot be

e󰀨ectively trimmed around.

OPERATION

Side View: Open Side View: Stored

When the leveler stores the PitMaster II folds onto itself

(accordion-fold). If panels are not folding correctly, adjust

shock cords and pull curtain forward until it operates

correctly.

NOTE: Panels are exible and will bend around the

leveler's sub-structure.

MAINTENANCE

Before use, inspect all parts for damage. Repair and

replace as required.

Clean seal with a low pressure hose or damp cloth and

mild detergent as required.

Figure 9

Figure 10

Rite-Hite®Installation/Service/Owner's Manual PitMaster™ II Under-leveler Seal

Publication: AMEN00401 2021-04-02 9

TROUBLESHOOTING

#ISSUE POSSIBLE CAUSE(S) SOLUTION

1 The curtain sags and/or falls

into the pit after the leveler has

stored.

The hook and loop fastener has

come loose between the main

curtain and the top section.

Re-attach the hook and loop fastener from the middle out. Make

sure the main curtain is evenly spaced and rmly pressed to the top

section.

One or more of the spring clips has

detached or broken from the leveler

frame.

Examine the spring clip to determine if it can be remounted.

Remount or if spring clip is broken, contact Rite-Hite Environmental

Enclosures Parts Department for replacements.

2 The width of the main curtain

and top section are not the

same width as the leveler.

Main curtain and top section may be

misapplied or on the wrong leveler.

Make sure components are being applied to the correct leveler. If

correct, re-apply and evenly space the main curtain and top section.

Main curtain and top section are

wider than the leveler.

Make sure components are being applied to the correct leveler. If

correct, trim edges of each for a better t.

3 The unit is not sealing the sides

of the pit well.

The side seals may be damaged. Check if the side seals have been bent or torn from the wall. They

can be reattached with concrete anchors (supplied by others) or

new side seals can be purchased from Rite-Hite Environmental

Enclosures Parts Department.

The side seals may be the wrong

height.

The side seals come in 16 in (406 mm), 24 in (610 mm) or 34 in

(854 mm) heights and are trimmed to t the pit. Side seals that are

too tall of can be trimmed for a better t. Side seals that are too short

need to be replaced.

4 The toe guards, safety legs,

end load legs, or other obstacles

hit the curtain when leveler is

coming down.

This is normal contact between

parts. The main curtain and top

section are designed to move and

ex with the leveler components.

The PitMaster II is reinforced to allow safety or end load legs to

perform their function without major wear or damage to the main

curtain or top section. It is normal to see some discoloration or wear

on the curtain from these legs.

5 The safety or end load legs are

pulling o󰀨 the curtain or are

wearing through the curtain.

The building may have high positive

pressure or the main curtain may

not be folding properly when the

leveler moves.

Make sure there is enough tension on the shock cord connected

to the back of the main curtain and the leveler stringers. The shock

cords should be pulled tight and not sagging The spring clips on

the leveler stringers may need to be moved further into the pit to

increase tension.

The building may have high

negative pressure and is pushing

the main curtain too far into the pit.

When there is a high negative pressure, the bottom aps of the main

curtain can be attached to the ller panels or front of the pit. This

prevents the main curtain from pushing too far into the pit.

Refer to "Non-Standard Levelers" on page 3 for more

information or contact Rite-Hite Applications.

6 Bottom of main curtain catches

on lip keepers or subframe.

The bottom of the main curtain may

not be trimmed correctly.

The main curtain has aps at the bottom which need to be trimmed

to correctly t and seal around pit obstructions. Make sure all 3

layers of aps have been separated to ll in the space around the

subframe. Trim any that are catching.

PitMaster™ II Under-leveler Seal Installation/Service/Owner's Manual Rite-Hite®

10 Publication: AMEN00401 2021-04-02

PARTS

PitMaster II

# DESCRIPTION PART #

13PLY TOP SECTION PMIITS

2MAIN CURTAIN ASSEMBLY PMIIMC

3 SHOCK CORDS (PR) 75740002

4 16" SIDE SEALS (PR) 45260042

24" SIDE SEALS (PR) 45260043

34" SIDE SEALS (PR) 45260044

5 16" FILLER PANELS (PR) 55050031

24" FILLER PANELS (PR) 55050033

6HARDWARE BAG 53600262

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