Power Step D10T User manual

FOLDING LADDER
Manual for Cat D10T Dozer
Left Side Walkway only
Aluminium Ladder
PSA-D10T-ALUM-LHS 14-10-14
Model No.: PSA-D10T-LHS
Serial No.: D10T-ALU-LHS-001- ~
Date Manufactured:

CONTENTS
Page 3Section 1 Installation and Mounting instructions
Installation Drawings
12 Section 2 Recommended Maintenance Procedure
13 Section 3 Operating Procedure
Section 4 Drawings and Repair Parts lists
14 4 Assemblies
15 4-1 Landing Assembly LHS
Parts Lists
18 4-2 Ladder Assembly
Parts List
19 4-3 Power Pack
Parts List
Hydraulic Diagram - Actuator
24 4-4 Electrical Controls
Parts List
26 4-5 Electrical System Wiring Diagram
Material Kit
Warning Page
FOLDING LADDER
Caterpillar D10T Dozer - Aluminium Ladder
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PSA-D10T-ALUM-LHS 14-10-14

FOLDING LADDER
Caterpillar D10T Dozer- Aluminium Ladder
Section 1 Installation and Mounting Instructions PS-25 252
Removal of OEM Spreader
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PSA-D10T-ALUM-LHS 14-10-14
PROCEDURE. 1. Per View Z, unbolt and remove the OEM SPREADER BAR
bolted across the mudguards at the rear of the machine.
2. Per View X, remove the threaded plugs that the Spreader
Bar is bolted to the Left Side mudguard only
USE SAFE WORKING AND LIFTING PRACTICES AT ALL TIMES.

FOLDING LADDER
Caterpillar D10T Dozer- Aluminium Ladder
Section 1 Installation and Mounting Instructions PS-25 253 Sht. 1
Bolting Pads
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PSA-D10T-ALUM-LHS 14-10-14
PROCEDURE
See Drawings 25 253 See Page 3 & 4
1. Fit the rear bolting pads against the internal reinforcement at the back end of the
OEM mudguards. Weld them to the internal reinforcing and the mudguard inner
and top/outer plates, as shown in all views on this drawing.
Note that all bevels on the bolting plates are to provide clearance over existing
welds, not as weld preparations for this installation.
2. Measuring from the rear bolting plates, fit the side bolting plates on the sides of
both mudguards using the measurements in View V-1 and or the template as
shown in Views U-1
All welds are to be Cat SP to AS1554 unless specifically directed otherwise.
Use safe lifting, welding and working procedures at all times.
NOTE
Follow all on-site/Mine lifting and
safety procedures when installing
Power Step Ladder System to Dozer.

FOLDING LADDER
Caterpillar D10T Dozer- Aluminium Ladder
Section 1 Installation and Mounting Instructions PS-25 253 Sht. 2
Bolting Pads
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PSA-D10T-ALUM-LHS 14-10-14
VIEW 1

FOLDING LADDER
Caterpillar D10T Dozer- Aluminium Ladder
Section 1 Installation and Mounting Instructions PS-24 253 Sht. 3
Bolting Pads
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PSA-D10T-ALUM-LHS 14-10-14
VIEW U-1
VIEW V-1 VIEW V-2

FOLDING LADDER
Caterpillar D10T Dozer- Aluminium Ladder
Section 1 Installation Instruction Drawings PS25 254
Mounting Plate
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PSA-D10T-ALUM-LHS 14-10-14
NOTES
On the back of the left mudguard -
fit the Mounting Plate/s and Washer Plates as shown,
hanging on the Hanger Studs - do not bolt on at this stage.

FOLDING LADDER
Caterpillar D10T Dozer- Aluminium Ladder
Section 1 Installation and Mounting Instructions PS-25 255
Side Platform Supports
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PSA-D10T-ALUM-LHS 14-10-14
NOTE
Follow all on-site/Mine lifting and safety procedures when installing
Power Step Ladder System to Dozer.
PROCEDURE
See Drawings Page 8
1. Drill holes to suit in the OEM Rear Spreader to pick up the tapped holes in the
mounting pads welded at the back of the mudguard. Fit the OEM Rear Spreader to
the tractor per View X.
2. Fit the Outer Washer Plate to the outer end of the OEM spreader, using bolts fitted
through the new holes in the OEM spreader (per i. above).
3. Fit Bush Isolators to the pads on the sides of the mudguard
4. Fit Bush Isolators to the boltholes at the top of the Mounting Plate per View Z. Fit
the Torque Arm Isolator. Bracket to the isolators attached to the mounting plate.
Per View Y.

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PSA-D10T-ALUM-LHS 14-10-14
FOLDING LADDER
Caterpillar D10T Dozer- Aluminium Ladder
Section 1 Installation and Mounting Instructions PS-25 255
Platform Supports - Rear

FOLDING LADDER
Caterpillar D10T Dozer- Aluminium Ladder
Section 1 Installation Instruction Drawings 25 256 Sht 1
Side Platform
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PSA-D10T-ALUM-LHS 14-10-14
NOTE
Follow all on-site/Mine lifting and safety procedures when installing
Power Step Ladder System to Dozer.
PROCEDURE
See Dwg. 24 934 Page 10 & 11
1) Fit the left side platform to the mudguard of the dozer. Fit Side Finger Brackets
under the Beam of the platform per View X. Fit Isolators to the pads on the sides of
the mudguard (front and back). Attach the Finger Brackets to the Isolators with
Isolator Pins per View X.
2) Fit the Torque Arm across the arm flange at the back of the platform and the Torque
Arm Isolator Bracket, per View Y.
USE SAFE LIFTING AND WORKING PROCEDURES AT ALL TIMES
Note that the platform will be supported by the mountings under it (i, above), it will not be
restarined against rotation until the Torque Arm is attached at both ends per (2).

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PSA-D10T-ALUM-LHS 14-10-14
FOLDING LADDER
Caterpillar D10T Dozer- Aluminium Ladder
Section 1 Installation Instruction Drawings - 25 256 Sht 2
See Procedure Page 10

FOLDING LADDER
Caterpillar D10T Dozer- Aluminium Ladder
Section 2 Recommended Maintenance Procedure
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PSA-D10T-ALUM-LHS 14-10-14
Daily Visually check ladder and structure for damage, loose components,
handrails, etc.
Check for hydraulic oil leaks from hydraulic Actuator, plumbing and hoses.
Notify the appropriate supervisor for any observed damage or malfunction.
500 Hours
Grease the nipples on the Actuator.
Check main mounting bolts for torque.
Check hydraulic oil level in power pack and top up as necessary.
Top up using same hydraulic oil as used in hydraulics of machine.
Thoroughly check all electrical wiring for damage, replace as necessary.
Repeat daily check as above
5000 Hours
Change hydraulic oil in tank of hydraulic power pack (5.0 litres)
It is recommended that the same hydraulic oil be used in the power pack as the
hydraulics of the machine.
Repeat daily check as above
NOTE.
THE RELIEF PRESSURE OF THE POWERPACK IS TO BE SET TO 2800PSI.
IF THE POWERPACK IS REPLACED,THIS RELIEF PRESSURE WILL NEED TO BE
RESET USING INLINE GAUGES.
FAILURE TO DO SO MAYRESULT IN ACCIDENT OR INJURY.

FOLDING LADDER
Caterpillar D10T Dozer- Aluminium Ladder
Section 3 Operating Procedure
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PSA-D10T-ALUM-LHS 14-10-14
To Lower Ladder (from the machine)
Position machine in a level, safe area, away from the work face, whenever possible.
Apply park brake and lower engine speed to idle.
Check that the area below the Ladder Access System is clear of people and
obstacles, and lower ladder by operating the two position electrical switch adjacent
to the ladder, to the down position by pressing the switch down.
Hold the switch in the down position until ladder is fully lowered.
If the Dozer is parked on uneven ground, the bottom of the ladder may touch the
ground before the ladder is in the fully lowered position.
Should this occur, descend the ladder with caution.
To Raise Ladder
Ascend the ladder onto the landing of the Dozer.
Ensure the area around the ladder is clear of people and standing to the side, clear
of the area the handrails and ladder raises into, operate the electrical switch to the
raise position (up).
Hold the switch in the up position until the ladder is in the fully raised position.
The ladder is now raised and stored.
OPERATING NOTES
NOTE: FLOW CONTROL VALVE ADJUSTMENT:
The valve should be positioned to restrict the flow and speed of the Power Step when
lowering. Adjust the knob on top of the valve by turning left or right (clockwise) when the
step is being lowered, until it is lowering at a safe and reasonable speed.
When it is adjusted, lock the adjusting knob by tightening the grub screw located on the
side of the knob.
NOTE: MAGNETIC 'GO' SWITCH ADJUSTMENT:
The switch target trigger area is located on the opposite side and end from the cable entry
point on the switch. Once it is mounted to the switch bracket, adjust the switch in or out
from the stair steel trigger point, to be within 3mm - 10mm from touching each other when
the stair is in the desired rest position.
[DO NOT EXCEED 10mm DISTANCE BETWEEN THE SWITCH AND STRIKER PLATE].
Test by raising and lowering the Power Step a couple of times and adjust again if
necessary.

FOLDING LADDER
Caterpillar D10T Dozer
Section 4 Assemblies
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PSA-D10T-ALUM-LHS 14-10-14

FOLDING LADDER
Caterpillar D10T Dozer- Aluminium Ladder
Section 4-1 Landing Assembly LHS PS-25 250A
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PSA-D10T-ALUM-LHS 14-10-14

FOLDING LADDER
Caterpillar D10T Dozer- Aluminium Ladder
Section 4-1 Landing Assembly LHS PS-25 250A
See Drawing Page 15
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PSA-D10T-ALUM-LHS 14-10-14
Item Part No. Part Name Qty
1
1A
2
3
3A
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
PS-25250
PS-24943
PS-24906 - LHS
PS-25251-A
PS-25251-B
PS-24908
PS-24928-01
PS-21930-A
PS-24930
PS-T30-27-E-FT-220-DA-O-H
PS-24945
PS-DOO93-1
PS-24902
PS-24901-01
PS-24901-02
PS-24903-01
PS-24903-02
PS-24920
PS-24920-07
PS-24909
PS-M20X80ZP
PS-M20X60ZP
CPS-M16X150ZP
CPS-M16X65ZP
CPS-M16X35ZP
CPS-M12X50ZP
CPS-M12X35ZP
CPS-M12X25ZP
CPS-M12X20ZP
CPS-M6X12ZP
CPS-M10X20SC
PS-5/8”X 2 3/4”ZP
PLATFORM FRAME - LHS
LANDING FILLER-BOLT IN
TORQUE ARM - LHS
HANDRAIL - LHS - FRONT
HANDRAIL - LHS - REAR
SIDE FINGER BRACKETS
SIDE BOLTING PAD
ISOLATOR MOUNTING ASSY.
ISOLATOR BUSH PIN
ACTUATOR
SPIGOT ASSEMBLIES (L & R)
SPRING
MOUNTING PAD
MOUNTING PAD REAR OUTER
MOUNTING PAD REAR INNER
WASHER PLATE OUTER
WASHER PLATE INNER
GUIDE POSTS
GUIDE PLATES
ISOLATOR BRACKET
BOLT-M20 x 80
BOLT-M20 x 60
BOLT-M16 x 150
BOLT-M16 x 65
BOLT-M16 x 35
BOLT-M12 x 50
BOLT-M12 x 35
BOLT-M12 x 25
BOLT-M12 x 20
BOLT-M6 x 12
SOCKET CAP BOLT-M10 x 20SC
BOLT - 5/8”X 2 3/4”UNC
1
1
1
1
1
2
2
6
3
1
1
2
1
1
1
1
1
2
2
1
4
4
4
3
4
4
36
12
12
4
4
2
(Includes Items 1-4,10,16, 17, 21, 23, 26, 33, 36,& 38)

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PSA-D10T-ALUM-LHS 14-10-14
Item Part No. Part Name Qty
31
32
33
34
35
36
37
38
39
PS-5/8”X 1 1/2”SC
CPS-M20NZP
CPS-M12NZP
CPS-1/2”NN
CPS-M20WH
CPS-M16WH
CPS-1/2”WH
CPS-M12WH
CPS-M10WH
SOCKET CAP BOLT-5/8”x 1 1/2”UNC
NUT-M20
NUT-M12
NUT-NYLOC-1/2” UNC
WASHER-HARDENED-M20
WASHER-HARDENED-M16
WASHER-HARDENED-1/2”
WASHER-HARDENED-M12
WASHER-HARDENED-M10
2
4
40
6
11
11
6
76
4
FOLDING LADDER
Caterpillar D10T Dozer- Aluminium Ladder
Section 4-1 Landing Assembly LHS PS-25 250A
See Drawing Page 15

FOLDING LADDER
Caterpillar D10T Dozer- Aluminium Ladder
Section 4-2 Ladder Assembly PS- 24 942A
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PSA-D10T-ALUM-LHS 14-10-14
Item Part No. Part Name Qty
1
2
3
4
5
6
7
8
9
10
PS-24942
PS-24946-01
PS-2229K
CPS-M12X100ZP
CPS-M12NN
CPS-M12WH
PS-40002
CPS-M10WH
PS-40003
CPS-M8WH
LADDER & HANDRAIL FABRICATION
BUSH KEEPER PLATE
POLYBUSH KIT
BOLT M12 x 100
NYLOC NUT-M12
WASHER-HARDENED-M12
BUFFER
WASHER M10
BUFFER
WASHER M8
1
8
4
4
4
8
2
2
2
2

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PSA-D10T-ALUM-LHS 14-10-14
8
4
13
27
26 6525
6
27
10
29
11
16
14
12
330
24 3A
Hoses shown
dotted
View B View A
7A
99A 8A
3B
FOLDING LADDER
Caterpillar D10T Dozer
Section 4-3 Power Pack PS-80103A-SLD/21
See Parts List Pg 21/22

NOTE.
THE RELIEF PRESSURE OF THE POWERPACK IS TO BE SET TO 2800SI.
IF THE POWERPACK IS REPLACED,THIS RELIEF PRESSURE WILL NEED TO BE
RESET USING INLINE GAUGES.
FAILURE TO DO SO MAYRESULT IN ACCIDENT OR INJURYPg20
PSA-D10T-ALUM-LHS 14-10-14
15
20
37
21
View B
23
9
9A
36
View A
32
33
24
14
19
11
16
28
10
18
31
17
12
FOLDING LADDER
Caterpillar D10T Dozer
Section 4-3 Power Pack PS-80103A-SLD
See Parts List Pg 21/22