PUMPSYSTEMMALFUNCTION

MALFUNCTION

CAUSE

REMEDY

 

The Pressure and/

Worn packing seals

Replace packing seals

 

or the Delivery

Broken valve spring

Replace spring

 

Drops

Belt slippage

Tighten or Replace belt

 

 

Worn or Damaged nozzle

Replace nozzle

 

 

Fouled discharge valve

Clean valve assembly

 

 

Fouled inlet strainer

Clean strainer

 

 

Worn or Damaged hose

Repair/Replace hose

 

 

Worn or Plugged relief valve on pump

Clean, Reset, and Replace worn parts

 

Cavitation

Check suction lines on inlet of

 

pump for restrictions

 

 

 

Unloader

Check for proper operation

 

 

 

 

 

Water in crankcase

High humidity

Reduce oil change interval

 

 

Worn seals

Replace seals

 

 

 

 

Noisy Operation

Worn bearings

Replace bearings, Refill crankcase

 

oilwith

recommended lubricant

 

 

Cavitation

Check inlet lines for restrictions

 

 

and/or proper sizing

 

 

 

 

 

Rough/Pulsating

Worn packing

Replace packing

 

Operation with

Inlet restriction

Check system for stoppage, air

Pressure Drop

 

leaks, correctly sized inlet

 

 

 

plumbing to pump

 

 

Accumulator pressure

Recharge/Replace accumulator

 

Unloader

Check for proper operation

 

 

Cavitation

Check inlet lines for restrictions

 

 

and/or proper size

 

 

 

 

Pump Pressure as

Restricted discharge plumbing

Re-size discharge plumbing to Drop at

gun

 

flow rate of pump

Rated,

Pressure

 

 

 

 

 

 

 

Excessive

Worn plungers

Replace plungers

 

Leakage

Worn packing/seals

Adjust or Replace packing seals

 

Excessive vacuum

Reduce suction vacuum

 

 

Cracked plungers

Replace plungers

 

 

Inlet pressure too high

Reduce inlet pressure

 

 

 

 

 

High Crankcase

Wrong Grade of oil

Giant oil is recommended

 

Temperature

Improper amount of oil in crankcase

Adjust oil level to proper amount

Preventative Maintenance Check-List & Recommended Spare Parts List

 

 

 

 

 

 

 

 

 

 

Check

Daily

Weekly

50hrs

Every

Every

 

Every

 

 

 

 

 

 

 

500 hrs

1500 hrs

 

3000 hrs

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Oil Level/Quality

X

 

 

 

 

 

 

 

Oil Leaks

X

 

 

 

 

 

 

 

Water Leaks

X

 

 

 

 

 

 

 

Belts, Pulley

 

X

 

 

 

 

 

 

Plumbing

 

X

 

 

 

 

 

 

 

 

Recommended Spare

Parts

 

 

 

 

Oil Change (1 Gallon) p/n 1154

 

 

X

X

 

 

 

 

Plunger Packing Kits (1 kit/pump)

 

 

 

 

X

 

 

 

(See page 5 for kit list)

 

 

 

 

 

 

 

 

ValveAssembly Kit (1 kit/pump)

 

 

 

 

 

 

X

 

(See page 5 for kit list)

 

 

 

 

 

 

 

 

Oil Seal Kit (1 kit/pump)

 

 

 

 

X

 

 

 

(See page 5 for kit list)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

Page 10
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Giant GP7132, GP7136 service manual Pumpsystemmalfunction, Parts

GP7136, GP7132 specifications

The Giant GP7136 and GP7132 are advanced bicycle tires known for their performance, durability, and innovative technologies. These models are specifically designed to cater to the needs of avid cyclists who require reliable and efficient tires for both on-road and off-road adventures.

One of the standout features of the GP7136 and GP7132 is their enhanced grip and traction. The tires are constructed with a specialized rubber compound that provides superior adherence to various surfaces, making them ideal for diverse riding conditions. Whether navigating slick roads or rugged trails, these tires deliver confidence-inspiring traction, allowing cyclists to tackle challenges with ease.

Another notable characteristic of the GP7136 and GP7132 is their puncture resistance. Designed with a robust construction, these tires incorporate layers of protective materials that help prevent flats due to sharp objects like nails or glass. This added durability ensures that cyclists can enjoy longer rides without the worry of sudden punctures, giving them the freedom to focus on their performance.

In terms of comfort, the GP7136 and GP7132 utilize innovative technologies that enhance the riding experience. The tires feature an optimized tread pattern that aids in shock absorption, reducing the impact on the rider when encountering bumps and uneven surfaces. This results in a smoother ride, which is particularly beneficial during long-distance journeys or challenging terrains.

The lightweight design of the GP7136 and GP7132 also contributes to their performance attributes. By minimizing rotational weight, these tires enable quicker acceleration and improved handling, giving cyclists a competitive edge whether they are racing or just enjoying a casual ride.

Both models are available in a variety of sizes to accommodate different bike types, from road bikes to mountain bikes. This versatility ensures that cyclists can find the perfect fit for their specific riding style and preferences.

In summary, the Giant GP7136 and GP7132 stand out in the cycling world thanks to their impressive features such as enhanced grip, puncture resistance, comfort technologies, and lightweight design. These tires are crafted to meet the demands of both competitive cyclists and casual riders, making them an excellent choice for anyone seeking high-quality bicycle tires. With the GP7136 and GP7132, cyclists can expect a reliable, performance-oriented riding experience that allows them to push their limits and enjoy every pedal stroke.